Privilege escalation in Mcabber
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 an entity on a 3rd party's roster as another user, which will also garner associated privileges, via crafted XMPP packets.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.045 (91.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.045 · newest: 0.045 · change: 0.000
Affected products
- Mcabber — versions before 1.0.4
- Canonical Ubuntu Linux — versions 16.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- bugs.debian.org/cgi-bin/bugreport.cgi (Exploit, Third Party Advisory)
- bitbucket.org/McKael/mcabber-crew/commits/6e1ead98930d7dd0a520ad17c720ae4908429… (Patch, Third Party Advisory)
- gultsch.de/gajim_roster_push_and_message_interception.html (Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/02/09/29 (Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/12/11/2 (Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/94862 (VDB Entry, Third Party Advisory)
- lists.opensuse.org/opensuse-updates/2017-01/msg00130.html (Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00031.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4506-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-9928?
- CVE-2016-9928 is a high-severity vulnerability in Mcabber, classified under Improper Privilege Management. CVSS score: 7.4/10. Published 2020-02-06.
- How severe is CVE-2016-9928?
- High severity. CVSS v3 base score is 7.4 out of 10.