CVE-2001-0169

Description

When using the LD_PRELOAD environmental variable in SUID or SGID applications, glibc does not verify that preloaded libraries in /etc/ld.so.cache are also SUID/SGID, which could allow a local user to overwrite arbitrary files by loading a library from /lib or /usr/lib.

Affected products

• mandrakesoft / mandrake_linux6.0 – 6.0
• mandrakesoft / mandrake_linux6.1 – 6.1
• mandrakesoft / mandrake_linux7.0 – 7.0
• mandrakesoft / mandrake_linux7.1 – 7.1
• mandrakesoft / mandrake_linux7.2 – 7.2
• mandrakesoft / mandrake_linux_corporate_server1.0.1 – 1.0.1
• RedHat / linux6.0 – 6.0
• RedHat / linux6.0 – 6.0
• RedHat / linux6.0 – 6.0
• RedHat / linux6.1 – 6.1
• RedHat / linux6.1 – 6.1
• RedHat / linux6.1 – 6.1
• RedHat / linux6.2 – 6.2
• RedHat / linux6.2 – 6.2
• RedHat / linux6.2 – 6.2
• trustix / secure_linux1.1 – 1.1
• trustix / secure_linux1.2 – 1.2
• turbolinux / turbolinux6.0.5
• turbolinux / turbolinux6.1 – 6.1

Exploits & proofs of concept

• exploit-dbGLIBC 2.1.3 - 'LD_PRELOAD' Local Privilege Escalationby Shadow

References

• VENDOR_ADVISORYhttp://www.novell.com/linux/security/advisories/2001_001_glibc_txt.html
• VENDOR_ADVISORYhttp://www.debian.org/security/2001/dsa-039
• MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/5971
• MISChttp://www.securityfocus.com/bid/2223
• MISChttp://www.securityfocus.com/archive/1/157650
• MISChttp://www.linux-mandrake.com/en/security/2001/MDKSA-2001-012.php3?dis=7.2
• MISChttp://www.redhat.com/support/errata/RHSA-2001-002.html
• MISChttp://archives.neohapsis.com/archives/linux/turbolinux/2001-q1/0004.html
• VENDOR_ADVISORYhttp://www.calderasystems.com/support/security/advisories/CSSA-2001-007.0.txt