CVE-2021-3156

Sažetak

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

Reference

http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html
http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html
http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html
http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
http://seclists.org/fulldisclosure/2021/Feb/42
http://seclists.org/fulldisclosure/2021/Jan/79
http://seclists.org/fulldisclosure/2024/Feb/3
http://www.openwall.com/lists/oss-security/2021/01/26/3
http://www.openwall.com/lists/oss-security/2021/01/27/1
http://www.openwall.com/lists/oss-security/2021/01/27/2
http://www.openwall.com/lists/oss-security/2021/02/15/1
http://www.openwall.com/lists/oss-security/2021/09/14/2
http://www.openwall.com/lists/oss-security/2024/01/30/6
http://www.openwall.com/lists/oss-security/2024/01/30/8
https://kc.mcafee.com/corporate/index?page=content&id=SB10348
https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/
https://security.gentoo.org/glsa/202101-33
https://security.netapp.com/advisory/ntap-20210128-0001/
https://security.netapp.com/advisory/ntap-20210128-0002/
https://support.apple.com/kb/HT212177
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM
https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability
https://www.debian.org/security/2021/dsa-4839
https://www.kb.cert.org/vuls/id/794544
https://www.openwall.com/lists/oss-security/2021/01/26/3
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.sudo.ws/stable.html#1.9.5p2
https://www.synology.com/security/advisory/Synology_SA_21_02
https://www.vicarius.io/vsociety/posts/sudoedit-pwned-cve-2021-3156

CVSS

Base:	7.2
Impact:	10.0
Exploitability:	3.9

Pristup

Vektor	Složenost	Autentikacija
LOCAL	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
COMPLETE	COMPLETE	COMPLETE

CVSS vektor

AV:L/AC:L/Au:N/C:C/I:C/A:C

Zadnje važnije ažuriranje

19-09-2024 - 19:58

Objavljeno

26-01-2021 - 21:15