CVE-2021-3156

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.

CVSS v2.0 7.2

7.2^/10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

CVSS v3.0 7.8 HIGH

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.openwall.com/lists/oss-security/2021/01/26/3	Exploit Mailing List
https://www.sudo.ws/stable.html#1.9.5p2	Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/01/26/3	Exploit Mailing List
https://security.gentoo.org/glsa/202101-33	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/	Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4839	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/27/1	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/27/2	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html	Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20210128-0001/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210128-0002/	Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM	Third Party Advisory
http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html	Exploit Third Party Advisory
http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html	Exploit Third Party Advisory
https://www.kb.cert.org/vuls/id/794544	Third Party Advisory US Government Resource
http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html	Exploit Third Party Advisory
https://support.apple.com/kb/HT212177	Third Party Advisory
http://seclists.org/fulldisclosure/2021/Feb/42	Mailing List Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10348	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/15/1	Exploit Mailing List
https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2021/Jan/79	Exploit Mailing List
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	Patch Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_21_02	Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/14/2	Mailing List Patch
https://www.oracle.com/security-alerts/cpuoct2021.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory

Configurations

Configuration 1

cpe:2.3:a:sudo_project:sudo:1.9.5:patch1:*:*:*:*:*:*

cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*

cpe:2.3:a:sudo_project:sudo:1.9.5:-:*:*:*:*:*:*

cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*

cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*

cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*

cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:*

cpe:2.3:a:mcafee:web_gateway:8.2.17:*:*:*:*:*:*:*

cpe:2.3:a:mcafee:web_gateway:9.2.8:*:*:*:*:*:*:*

cpe:2.3:a:mcafee:web_gateway:10.0.4:*:*:*:*:*:*:*

cpe:2.3:a:synology:diskstation_manager:6.2:*:*:*:*:*:*:*

cpe:2.3:a:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*

cpe:2.3:a:beyondtrust:privilege_management_for_mac:*:*:*:*:*:*:*:*

cpe:2.3:a:beyondtrust:privilege_management_for_unix/linux:*:*:*:*:basic:*:*:*

cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:*

cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:*

History

24 Jan 2023, 16:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:predictapp_project:predictapp::::::::
References	~~(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 -~~	(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 - Patch, Third Party Advisory
References	~~(MISC) https://github.com/abhilash1985/PredictApp/pull/73 -~~	(MISC) https://github.com/abhilash1985/PredictApp/pull/73 - Patch, Third Party Advisory
References	~~(MISC) https://vuldb.com/?id.218387 -~~	(MISC) https://vuldb.com/?id.218387 - Third Party Advisory
References	~~(MISC) https://vuldb.com/?ctiid.218387 -~~	(MISC) https://vuldb.com/?ctiid.218387 - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
First Time		Predictapp Project predictapp Predictapp Project

16 Jan 2023, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-01-26 09:15

Updated : 2022-09-03 03:40

NVD link : CVE-2021-3156

Mitre link : CVE-2021-3156

Products Affected

Synology

Vs960hd Firmware

CWE

CWE-193

Off-by-one Error