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PRIOn knowledge basePRION:CVE-2019-19521HistoryDec 05, 2019 - 12:15 a.m.
Authentication flaw
2019-12-0500:15:00
PRIOn knowledge base
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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).
References
packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
seclists.org/fulldisclosure/2019/Dec/14
www.openwall.com/lists/oss-security/2019/12/04/5
www.openwall.com/lists/oss-security/2019/12/04/6
seclists.org/bugtraq/2019/Dec/8
www.openbsd.org/errata66.html
www.openwall.com/lists/oss-security/2019/12/04/5
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