CVE-2016-7144

Severity: high (CVSS 8.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-01-18 · updated 2026-06-17
Weakness: CWE-287

Description

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.

Affected products

UnrealIRCd: through 3.2.10.5; 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.3.1, 4.0.4 (+1)

References

http://www.openwall.com/lists/oss-security/2016/09/04/3
http://www.openwall.com/lists/oss-security/2016/09/05/8
http://www.securityfocus.com/bid/92763
https://forums.unrealircd.org/viewtopic.php?f=1&t=8588
https://github.com/unrealircd/unrealircd/commit/f473e355e1dc422c4f019dbf86bc50ba1a34a766
http://www.openwall.com/lists/oss-security/2016/09/04/3
http://www.openwall.com/lists/oss-security/2016/09/05/8
http://www.securityfocus.com/bid/92763
https://forums.unrealircd.org/viewtopic.php?f=1&t=8588
https://github.com/unrealircd/unrealircd/commit/f473e355e1dc422c4f019dbf86bc50ba1a34a766

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