Vulnerability CVE-2010-3856

Vulnerability CVE-2010-3856

Published: 2011-01-07 Modified: 2012-02-13

Description:

ld.so in the GNU C Library (aka glibc or libc6) before 2.11.3, and 2.12.x before 2.12.2, does not properly restrict use of the LD_AUDIT environment variable to reference dynamic shared objects (DSOs) as audit objects, which allows local users to gain privileges by leveraging an unsafe DSO located in a trusted library directory, as demonstrated by libpcprofile.so.

See advisories in our WLB2 database:

	Topic	Author	Date
High	The GNU C library dynamic linker will dlopen arbitrary DSOs during setuid loads	taviso	11.01.2011
High	Glibc 2.11.3 / 2.12.x LD_AUDIT libmemusage.so Local Root	Todor Donev	19.05.2013
High	GNU libc 2.12.1 LD_AUDIT libmemusage.so Local Root	ssbostan	07.11.2014
High	GNU libc 2.12.1 LD_AUDIT libpcprofile.so Local Root	ssbostan	07.11.2014
Med.	glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation	Brendan Coles	11.02.2018
Med.	glibc LD_AUDIT libmemusage.so RHEL-Based Arbitrary DSO Load Privilege Escalation	Marco Ivaldi	31.03.2018
High	OpenSSH Forwarded SSH-Agent Remote Code Execution	Qualys Security ...	23.07.2023

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score	Impact Subscore	Exploitability Subscore
7.2/10	10/10	3.9/10

Exploit range	Attack complexity	Authentication
Local	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Complete	Complete	Complete

Affected software
GNU -> Glibc

References:

http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html

http://seclists.org/fulldisclosure/2010/Oct/344

http://seclists.org/fulldisclosure/2019/Jun/18

http://security.gentoo.org/glsa/glsa-201011-01.xml

http://sourceware.org/ml/libc-hacker/2010-10/msg00010.html

http://support.avaya.com/css/P8/documents/100121017

http://www.debian.org/security/2010/dsa-2122

http://www.mandriva.com/security/advisories?name=MDVSA-2010:212

http://www.redhat.com/support/errata/RHSA-2010-0872.html

http://www.securityfocus.com/archive/1/515545/100/0/threaded

http://www.securityfocus.com/bid/44347

http://www.ubuntu.com/usn/USN-1009-1

http://www.vmware.com/security/advisories/VMSA-2011-0001.html

http://www.vupen.com/english/advisories/2011/0025

https://bugzilla.redhat.com/show_bug.cgi?id=645672

https://lists.opensuse.org/opensuse-security-announce/2010-10/msg00007.html

https://rhn.redhat.com/errata/RHSA-2010-0793.html

https://seclists.org/bugtraq/2019/Jun/14

https://www.exploit-db.com/exploits/44025/

Vulnerability CVE-2010-3856

See advisories in our WLB2 database:

High

The GNU C library dynamic linker will dlopen arbitrary DSOs during setuid loads

High

Glibc 2.11.3 / 2.12.x LD_AUDIT libmemusage.so Local Root

High

GNU libc 2.12.1 LD_AUDIT libmemusage.so Local Root

High

GNU libc 2.12.1 LD_AUDIT libpcprofile.so Local Root

Med.

glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation

Med.

glibc LD_AUDIT libmemusage.so RHEL-Based Arbitrary DSO Load Privilege Escalation

High

OpenSSH Forwarded SSH-Agent Remote Code Execution

CWE-264

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

7.2/10

10/10

3.9/10

Local

Low

No required

Complete

Complete

Complete

Affected software

References: