Auth bypass in Unrealircd
CVE-2016-7144
The m_authenticate function in modules/m_sasl.c in UnrealIRCd before 3.2.10.7 and 4.x before 4.0.6 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.
Vulnerability class: Broken Authentication
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: 0.013 (69.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Unrealircd — versions 4.0.0, 4.0.1, 4.0.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/unrealircd/unrealircd/commit/f473e355e1dc422c4f019dbf86bc50ba1a34a766 (Patch)
- forums.unrealircd.org/viewtopic.php (Vendor Advisory)
- www.securityfocus.com/bid/92763 (VDB Entry, Third Party Advisory, 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-2016-7144?
- CVE-2016-7144 is a high-severity vulnerability in Unrealircd, classified under Improper Authentication. CVSS score: 8.1/10. Published 2017-01-18.
- How severe is CVE-2016-7144?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2016-7144 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.