Overview
- Description
- libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/auth_subr.c and gen/authenticate.c in libc (and login/login.c and xenocara/app/xenodm/greeter/verify.c).
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-287
Social media
- Hype score
- Not currently trending
Configurations
[ { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:openbsd:openbsd:6.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0E0CC007-1428-4683-A196-3544F1C9CC92" } ], "operator": "OR" } ] } ]