CVE-2019-19726
CVE-2019-19726
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.
Produtos afetados
n/a · n/aPoCs públicas encontradas — 5
cve_referencepacketstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.htmlnão verificadocve_referencepacketstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.htmlnão verificadocve_referencepacketstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.htmlnão verificadoexploitdbwww.exploit-db.com/exploits/47803não verificadoexploitdbwww.exploit-db.com/exploits/47780não verificado⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
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Falar com a TrueHacking →Referências
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