CVE-2019-19726
CVE-2019-19726
Vexday Risk Score
38Atención
Decisión SSVC (CISA)
Attend
PoC disponible → seguir de cerca
Madurez del exploit
Exploit funcional
Exploit automatizable disponible (Nuclei/Metasploit).
CVSS —EPSS 3.5%KEV nãoPoC públicaNuclei —Metasploit simPatch —
Ciclo de vida
11 dic 2019Exploit Metasploit disponible
12 dic 2019Publicada en NVD
16 dic 2019PoC pública
Velocidad de armamento
4 díashasta el primer PoC
Armada rápidamente — los atacantes priorizaron esta vulnerabilidad. Corrige con urgencia.
Recomendación: Planificar corrección próxima — ya existe PoC pública.
OpenBSD through 6.6 allows local users to escalate to root because a check for LD_LIBRARY_PATH in setuid programs can be defeated by setting a very small RLIMIT_DATA resource limit. When executing chpass or passwd (which are setuid root), _dl_setup_env in ld.so tries to strip LD_LIBRARY_PATH from the environment, but fails when it cannot allocate memory. Thus, the attacker is able to execute their own library code as root.
Productos afectados
n/a · n/aPoCs públicas encontradas — 5
cve_referencepacketstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.htmlno verificadocve_referencepacketstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.htmlno verificadocve_referencepacketstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.htmlno verificadoexploitdbwww.exploit-db.com/exploits/47803no verificadoexploitdbwww.exploit-db.com/exploits/47780no verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
Referencias
http://packetstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.htmlhttp://packetstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.htmlhttp://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.htmlhttp://seclists.org/fulldisclosure/2019/Dec/31http://seclists.org/fulldisclosure/2023/Oct/11https://seclists.org/bugtraq/2019/Dec/25https://www.openbsd.org/errata66.htmlhttps://www.openwall.com/lists/oss-security/2019/12/11/9http://www.openwall.com/lists/oss-security/2023/10/03/2