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Posted to dev@tomcat.apache.org by bu...@apache.org on 2015/03/22 18:35:34 UTC
[Bug 57736] New: changes from Tomcat 7 to Tomcat 8 causing problems
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Bug ID: 57736
Summary: changes from Tomcat 7 to Tomcat 8 causing problems
Product: Tomcat 8
Version: 8.0.20
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: frank.holler@gmx.de
Our webapp is using bouncycastle security provider, which was packed within the
WEB-INF/lib folder.
Furthermore our webapp run within a tomcat environment, which uses
unpackWars="false".
This woked fine with Tomcat6 and Tomcat7. After switching to Tomcat8 we got an
exception:
Caused by: java.lang.SecurityException: JCE cannot authenticate the provider BC
at javax.crypto.Cipher.getInstance(Cipher.java:642)
at javax.crypto.Cipher.getInstance(Cipher.java:580)
at
de.balvi.xmljobs.job.domain.JobParameterType$PasswordJobParameterType.createCipher(JobParameterType.java:200)
at
de.balvi.xmljobs.job.domain.JobParameterType$PasswordJobParameterType.toPersistent(JobParameterType.java:169)
... 96 more
Caused by: java.util.jar.JarException:
jar:file:/D:/Java_Bin/BALVI_TOMCAT/webapps/ROOT.war!/WEB-INF/lib/bcprov-jdk15on-1.51.jar
has unsigned entries - WEB-INF/css/bootstrap-responsive.min.css
at javax.crypto.JarVerifier.verifySingleJar(JarVerifier.java:462)
at javax.crypto.JarVerifier.verifyJars(JarVerifier.java:322)
at javax.crypto.JarVerifier.verify(JarVerifier.java:250)
at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:161)
at javax.crypto.JceSecurity.getVerificationResult(JceSecurity.java:187)
at javax.crypto.Cipher.getInstance(Cipher.java:638)
at javax.crypto.Cipher.getInstance(Cipher.java:580)
at
de.balvi.xmljobs.job.domain.JobParameterType$PasswordJobParameterType.createCipher(JobParameterType.java:200)
The exception "java.util.jar.JarException:
jar:file:/D:/Java_Bin/BALVI_TOMCAT/webapps/ROOT.war!/WEB-INF/lib/bcprov-jdk15on-1.51.jar
has unsigned entries - WEB-INF/css/bootstrap-responsive.min.css"
states to an entry of the WAR itself instead of an entry of the
bcprov-jdk150-1.51.jar.
Extract from
JobParameterType$PasswordJobParameterType.createCipher(JobParameterType.java:200)
states to
private Cipher createCipher(int encryptMode) throws
NoSuchAlgorithmException, NoSuchProviderException,
NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException {
// Register BouncyCastleProvider
Security.addProvider(new BouncyCastleProvider());
// Create the IV Key
AlgorithmParameterSpec IVspec = new IvParameterSpec(getIV128Key());
// Create the Cipher für Decrypting
Cipher encryptCipher = Cipher.getInstance("AES/CBC/PKCS5Padding",
"BC"); // <== line 200
SecretKey keyValue = new SecretKeySpec(getAES128Key(), "AES");
encryptCipher.init(encryptMode, keyValue, IVspec);
return encryptCipher;
}
As workaround, i removed the bouncycastle provider from the WEB-INF/lib and put
it to CATALINA_BASE/lib.
A second problem occured, when a uri resource is loaded from a jar inside a
unpacked war:
com.mycila.xmltool.XMLDocumentException: Validation failed: Illegal character
in opaque part at index 55:
jar:war:file:/D:/Java_Bin/BALVI_TOMCAT/webapps/ROOT.war^/WEB-INF/lib/xmljobs-1.1.1.jar!/xmljobs/groovy-flow-1.0.xsd
The RFC 2396 "URI Generic Syntax" says, the char ^ is an "unwise" uri char,
which causes a java.net.URISyntaxException in our environment.
As workaround, we changed the resource loader to return a Stream instead of the
uri string.
Both problems are reproducable with any java platform. (Tried Java 7/8 on
Windows X86_64, Linux X86_64) with Tomcat 8. Tomcat 7 has no problem.
Please check the changes form 7 to 8.
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #3 from Mark Thomas <ma...@apache.org> ---
(In reply to Frank Holler from comment #2)
> To use unpackWars="true" is a problem for us.
Why?
> So i digged a little deeper into the problem.
> I found out that Tomcat 7 and Tomcat 8 both extract classes and libs from
> WEB-INF to CATALINA_BASE/work/[app]/, even if unpackWars="false" is set.
That is not correct. Tomcat 8 does not extract JARs or classes to the work
directory under any circumstances.
One of the options considered to address the performance problems is to restore
the extraction of the JARs to the work directory but that creates complexity in
an area where we have been trying to reduce it. This is still an option of last
resort but my preference - where possible - is to address the reasons why
people can't use unpackWARs="true".
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #10 from Frank Holler <fr...@gmx.de> ---
(In reply to Mark Thomas from comment #9)
> From Tomcat 8.0.22 onwards (the 8.0.21 release is currently in progress so
> 8.0.22 should be within the next month) */ is used rather than ^/ which is
> valid as per RFC 2396. The old format is still supported if it is used but
> any URLs returned by Tomcat will use the new format. I've also added some
> test cases to validate these changes.
>
> By my count that leaves the javax.crypto issue - which will looks like a JRE
> bug - that you should be able to work-around with unpackWARs="true".
Sounds good from me. We will set the pom dependy to "provided" an put the
bouncy castle provider to CATALINA_BAS/lib. If our customers won't use
unpackWars="true", i'll expect that our app will work onTomcat 8 using 8.0.21
and abouve.
Thanks for the fast and qualified help.
Kind regards,
Frank
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEEDINFO |RESOLVED
--- Comment #15 from Mark Thomas <ma...@apache.org> ---
No further information provided.
If you still observe the problem described in comment #12 then please create a
new issue and provide a test case that can be used to reproduce the problem.
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #9 from Mark Thomas <ma...@apache.org> ---
>From Tomcat 8.0.22 onwards (the 8.0.21 release is currently in progress so
8.0.22 should be within the next month) */ is used rather than ^/ which is
valid as per RFC 2396. The old format is still supported if it is used but any
URLs returned by Tomcat will use the new format. I've also added some test
cases to validate these changes.
By my count that leaves the javax.crypto issue - which will looks like a JRE
bug - that you should be able to work-around with unpackWARs="true".
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Frank Holler <fr...@gmx.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |---
Status|RESOLVED |REOPENED
--- Comment #2 from Frank Holler <fr...@gmx.de> ---
Hi again,
i'm sorry to bother you again, but the slight difference between Tomcat 7 and
Tomcat 8 causes many support trouble for me. To use unpackWars="true" is a
problem for us. As you suggested, unpackWars="true" worked, but
unpackWars="false" seems to be broken with Tomcat 8.
So i digged a little deeper into the problem.
I found out that Tomcat 7 and Tomcat 8 both extract classes and libs from
WEB-INF to CATALINA_BASE/work/[app]/, even if unpackWars="false" is set.
The difference seems to be that Tomcat 7 delives resource or class loader
requests from the "work" direktory. So there is at least a file to open and all
things worked fine.
The javax.crypto.JarVerifier.verifySingleJar is happy and bouncycastle provider
gets registered.
With Tomcat 8 the things changed, so the classloader(?) returns an URI to the
relativ path within the war instead of the jar in "work". This causes
javax.crypto.JarVerifier.verifySingleJar to verify the WAR instead of the jar.
The same behavior seems to match for the resource loader, which delived a
relative path for our xsd stored within a jar.
As Tomcat 7 worked fine i assume that many other webapps would have the same
problem, if they running with unpackWars="false"
So i beg you, please take a look at this behavior change from Tomcat 7 to
Tomcat 8
Kind regards,
Frank
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #6 from Frank Holler <fr...@gmx.de> ---
Created attachment 32597
--> https://bz.apache.org/bugzilla/attachment.cgi?id=32597&action=edit
example war for getResource() from lib
see README.txt embedded within the zip
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #5 from Mark Thomas <ma...@apache.org> ---
(In reply to Frank Holler from comment #4)
> The reason why we don't use unpackWars="true" is, that the unpacked
> directory won't get updated, if the war changes. For security reasons we
> (and our customers) don't deploy the "manager" or any other webapp, only our
> war.
>
> So the deployment process with unpackWars="false" is:
> 1.) drop the new war into webapps
> 2.) restart tomcat
You must have also set autoDeploy="false" otherwise dropping an updated WAR
into a running Tomcat instance would trigger a redploy.
> With unpackWars="true" and without using "manager"-app the steps to update
> would be:
> 1.) stop tomcat
> 2.) delete the unpacked folder => otherwise it won't work!!!
> 3.) drop the new war into webapps
> 4.) start tomcat again
Not the case as of Tomcat 8.0.21. On restart, Tomcat will now detect the
updated WAR, delete the expanded directory and expand the updated WAR (assuming
deployOnStartup="true").
> I understand, that a revert of the changes isn't easy, but for my opinion,
> unpackWars="false" isn't usable with tomcat 8 any more without refactoring
> many of our logic to bypass the new loader behavior.
> The problem is, that we don't know, which of the used libs also have a
> problem (like com.mycila.xmltool), so we would be happy, if the behavior of
> tomcat 8 keeps compatible tomcat 7.
Tomcat's general policy for adding workarounds for bugs in other projects is
that we won't do it. Fixing the issue at the source means the fix is more
widely available and we have more time to spend on Tomcat bugs and new feature
requests. We do make occasional exceptions - usually when the bug is likely to
affect a large proportion of the Tomcat user based and the 3rd party vendor has
indicated that they have no intention of fixing the bug.
The new ability to detect an updated WAR while Tomcat has stopped looks to be
sufficient to remove the need for your application to run with
unpackWARs="false".
The behaviour of javax.crypto with an unpacked WAR is a concern although we
don't see as much bouncy castle usage as we used to.
The issue with com.mycila.xmltool falls into the category that we'd expect the
vendor to fix.
As per the discussion on bug 57251 and as stated above, the preference remains
to fix issues people have with unpackWARs="true". I haven't seen anything in
this issue that explains why - as of 8.0.21 - running with unpackWARs="true" is
not a viable option for you.
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #4 from Frank Holler <fr...@gmx.de> ---
(In reply to Mark Thomas from comment #3)
> (In reply to Frank Holler from comment #2)
> > To use unpackWars="true" is a problem for us.
>
> Why?
>
> > So i digged a little deeper into the problem.
> > I found out that Tomcat 7 and Tomcat 8 both extract classes and libs from
> > WEB-INF to CATALINA_BASE/work/[app]/, even if unpackWars="false" is set.
>
> That is not correct. Tomcat 8 does not extract JARs or classes to the work
> directory under any circumstances.
>
> One of the options considered to address the performance problems is to
> restore the extraction of the JARs to the work directory but that creates
> complexity in an area where we have been trying to reduce it. This is still
> an option of last resort but my preference - where possible - is to address
> the reasons why people can't use unpackWARs="true".
You're rigt, my fault. i did not clean up the work directory after changing
form unpackWars="true" to "false". So the remaining files was leftover from the
last restart.
The reason why we don't use unpackWars="true" is, that the unpacked directory
won't get updated, if the war changes. For security reasons we (and our
customers) don't deploy the "manager" or any other webapp, only our war.
So the deployment process with unpackWars="false" is:
1.) drop the new war into webapps
2.) restart tomcat
With unpackWars="true" and without using "manager"-app the steps to update
would be:
1.) stop tomcat
2.) delete the unpacked folder => otherwise it won't work!!!
3.) drop the new war into webapps
4.) start tomcat again
To check, if this behavior changed with tomcat 8 we did the following:
Our webapp version 2.6.6 is deployed with unpackwars="true", the unpacked
folder exists. Afterwards we replaced the WAR with version 2.6.7 and restart
tomcat.
As any version before, the unpacked directory wasn't updated, so the version
2.6.6 is started again, the new war with version 2.6.7 is ignored.
After this problem occured often, we told our customers to set
unpackWars="false", so our customers (and our support of course) has less
problems when delvierung updates of our app.
So perhaps you understand, why we won't like to tell our customers to change
unpackWars back when updating to tomcat 8.
I understand, that a revert of the changes isn't easy, but for my opinion,
unpackWars="false" isn't usable with tomcat 8 any more without refactoring many
of our logic to bypass the new loader behavior.
The problem is, that we don't know, which of the used libs also have a problem
(like com.mycila.xmltool), so we would be happy, if the behavior of tomcat 8
keeps compatible tomcat 7.
Kind regards,
Frank
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
rsand@idfconnect.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
Version|8.0.20 |8.0.30
--- Comment #12 from rsand@idfconnect.com ---
Apologies for re-opening this case. I'm using the RSA crypto jars and have the
same behavior with 8.0.30. I think the thread below misses the point of where
the actual bug is.
When not unpacking the war file, the jar signature check is seeing that the jar
is signed (in my case the RSA jar, in the previous user's case, the BC jar),
but is then checking the signature on the war file itself, instead of the jar.
It seems that the functionality of leaving a war file packed, where the war
file has a signed jar in its WEB-INF/lib, is simply broken.
Of course there are workarounds - unpacking the war, or moving the signed jars
into the tomcat/lib folder - but these are both workarounds for something that
is broken.
If it is the intent of the tomcat community to no longer allow/support signed
jars inside packed war files, then there is no choice but to use a workaround,
and this limitation should be called out. But I suspect that this behavior is
probably inadvertent and should be fixed, rather than insist that war files
with signed jars must be unpacked in tomcat8 and beyond.
What do you think?
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|REOPENED |RESOLVED
--- Comment #11 from Mark Thomas <ma...@apache.org> ---
Just to be clear, the URLs for WAR resources fix will be in 8.0.22 onwards.
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #7 from Frank Holler <fr...@gmx.de> ---
(In reply to Mark Thomas from comment #5)
> (In reply to Frank Holler from comment #4)
> The issue with com.mycila.xmltool falls into the category that we'd expect
> the vendor to fix.
I created a quiet simple test project to demonstrate the problem of
getClass().getResource(), which returns an URL.
So in my opinion, this is no "vendor specific" problem, because i only used
Java Runtime imports, no additional imports are needed.
Kind regards,
Frank
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #8 from Mark Thomas <ma...@apache.org> ---
(In reply to Frank Holler from comment #7)
> So in my opinion, this is no "vendor specific" problem, because i only used
> Java Runtime imports, no additional imports are needed.
Accepted. The format we use for WAR URLs fails if toURI() is called on it. That
needs to get fixed. I'll look at that today.
You still haven't responded to this: "I haven't seen anything in this issue
that explains why - as of 8.0.21 - running with unpackWARs="true" is not a
viable option for you."
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|NEW |RESOLVED
--- Comment #1 from Mark Thomas <ma...@apache.org> ---
Neither of these are issues with Tomcat.
The first is an invalid assumption in javax.crypto about the location of the
provided classes and the second is overly strict URI validation in your
environment.
Another workaround would be to run with unpackWARs. A further advantage will be
a performance improvement in class loading.
For a fuller discussion of the performance impact of unpackWARs see Bug 57251.
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
--- Comment #13 from rsand@idfconnect.com ---
Let me be more specific - the jar verifier is complaining that the signed jar
contains other unrelated resources (a JSP page), which are actually in the war,
not the jar at all:
Caused by: java.util.jar.JarException:
jar:file:/D:/IDFC/SSORest/app/gateway-2.11.3-SNAPSHOT.war!/WEB-INF/lib/cryptoj-12.52.0.0.jar
has unsigned entries - publicauth.jsp
at javax.crypto.JarVerifier.verifySingleJar(JarVerifier.java:464)
at javax.crypto.JarVerifier.verifyJars(JarVerifier.java:322)
at javax.crypto.JarVerifier.verify(JarVerifier.java:250)
at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:160)
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |NEEDINFO
--- Comment #14 from Mark Thomas <ma...@apache.org> ---
I can't repeat the problem you are reporting.
Please provide a test case that reproduces this issue with one of:
- 8.0.x trunk
- 9.0.x trunk
- latest 8.0.x release
- latest 9.0.x release
The test case should be as simple as an index.jsp page to package with the
Bouncy Castle provider JAR (I don't have easy access to Crypto-J but if this is
the same issue it will be reproducible with BC) in a packed WAR that triggers
the exception.
The test case I am currently using that loads the BC provider works without
error.
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[Bug 57736] changes from Tomcat 7 to Tomcat 8 causing problems
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=57736
Frank Holler <fr...@gmx.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Hardware|PC |All
OS|Windows NT |All
CC| |frank.holler@gmx.de
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