Auth bypass in Charybdis Project
CVE-2016-7143
The m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (63.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Charybdis Project
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- github.com/charybdis-ircd/charybdis/commit/818a3fda944b26d4814132cee14cfda4ea4a… (Patch, Issue Tracking)
- www.debian.org/security/2016/dsa-3661 (vendor-advisory, Third Party Advisory)
- github.com/charybdis-ircd/charybdis/blob/charybdis-3.5.3/NEWS.md (Third Party Advisory, Release Notes)
- www.securityfocus.com/bid/92761 (vdb-entry)
- www.openwall.com/lists/oss-security/2016/09/05/8 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/09/04/3 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-7143?
- CVE-2016-7143 is a high-severity vulnerability in Charybdis Project, classified under Improper Authorization. CVSS score: 8.1/10. Published 2016-09-21.
- How severe is CVE-2016-7143?
- High severity. CVSS v3 base score is 8.1 out of 10.