CVE-2019-19522

OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root...

CVE-2019-19519

In OpenBSD 6.6, local users can use the su -L option to achieve any login class often excluding root because there is a logic error in the main function in su/su.c...

CVE-2019-19519

In OpenBSD 6.6, local users can use the su -L option to achieve any login class often excluding root because there is a logic error in the main function in su/su.c...

CVE-2019-19521

libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/authsubr.c and gen/authenticate.c in libc and login/login.c and xenocara/app/xenodm/greeter/verify.c...

Default configuration

OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root...

Design/Logic Flaw

In OpenBSD 6.6, local users can use the su -L option to achieve any login class often excluding root because there is a logic error in the main function in su/su.c...

Design/Logic Flaw

xlock in OpenBSD 6.6 allows local users to gain the privileges of the auth group by providing a LIBGLDRIVERSPATH environment variable, because xenocara/lib/mesa/src/loader/loader.c mishandles dlopen...

Authentication flaw

libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/authsubr.c and gen/authenticate.c in libc and login/login.c and xenocara/app/xenodm/greeter/verify.c...

OpenBSD has an unspecified vulnerability (CNVD-2019-44735)

OpenBSD is a cross-platform, BSD-based UNIX-like operating system from the Canadian OpenBSD project team. A security vulnerability exists in xlock in OpenBSD version 6.6, which stems from the xenocara/lib/mesa/src/loader/loader.c file not handling dlopen correctly.A local attacker can exploit thi...

OpenBSD has an unspecified vulnerability (CNVD-2019-44737)

OpenBSD is a cross-platform, BSD-based UNIX-like operating system from the Canadian OpenBSD project team. A security vulnerability exists in OpenBSD version 6.6. When the S/Key or YubiKey authentication mechanism is turned on, a local attacker can exploit the vulnerability to become the root user...

OpenBSD has an unspecified vulnerability

OpenBSD is a cross-platform, BSD-based UNIX-like operating system from the Canadian OpenBSD project team. A security vulnerability exists in OpenBSD version 6.6. A local attacker can exploit the vulnerability to elevate privileges...

OpenBSD has an unspecified vulnerability (CNVD-2019-44736)

OpenBSD is a cross-platform, BSD-based UNIX-like operating system from the Canadian OpenBSD project team. A security vulnerability exists in libc in OpenBSD version 6.6. An attacker can exploit this vulnerability to bypass authentication with the help of the -schallenge user...

Qualys Security Advisory - OpenBSD Authentication Bypass / Privilege Escalation

Qualys Security Advisory Authentication vulnerabilities in OpenBSD ============================================================================== Contents ============================================================================== 1. CVE-2019-19521: Authentication bypass 1.1. Analysis 1.2. Cas...

CVE-2019-19519

OpenBSD 6.6 vulnerability CVE-2019-19519: a logic error in su.c enables a local user to use su -L to login with another user’s login class, enabling local privilege escalation. Affected software is OpenBSD 6.6; the flaw resides in the main function of su/su.c. Consequences include bypassing inten...

CVE-2019-19519

In OpenBSD 6.6, local users can use the su -L option to achieve any login class often excluding root because there is a logic error in the main function in su/su.c...

CVE-2019-19520

OpenBSD 6.6 is affected by CVE-2019-19520 (xlock) where local attackers can escalate to the auth group by manipulating LIBGL_DRIVERS_PATH. Root cause: xenocara/lib/mesa/src/loader/loader.c mishandles dlopen. Impact, per sources, is local privilege escalation; OpenBSD patches exist via syspatch/Op...

CVE-2019-19521

CVE-2019-19521 affects OpenBSD 6.6 libc and enables authentication bypass via the -schallenge username, exploitable remotely in smtpd, ldapd, or radiusd. Root cause ties to libc code paths gen/auth_subr.c and gen/authenticate.c (also related login.c and xenocara/greeter/verify.c). OpenBSD patches...

CVE-2019-19521

libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/authsubr.c and gen/authenticate.c in libc and login/login.c and xenocara/app/xenodm/greeter/verify.c...

CVE-2019-19522

OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root...

CVE-2019-19522

OpenBSD 6.6 is affected when S/Key or YubiKey authentication is enabled (non-default). A local attacker in the auth group can escalate to root because root’s file can be written to /etc/skey or /var/db/yubikey and need not be owned by root. This CVE corresponds to CVE-2019-19522. Reported impact ...