Cdrecord RSH allows elevated privileges
| cdrecord-rsh-gain-privileges (17303) |  High Risk |
Description:
Cdrecord could allow a local attacker to gain elevated privileges on the system. A local attacker could specify a program using the RSH (remote shell) environment variable to cause Cdrecord to fail to drop privileges when executing the program, which would allow the attacker
to gain root privileges.
Note: Cdrecord must be installed setuid root to exploit this vulnerability.
Platforms Affected:
- Gentoo, Linux
- Jörg Schilling, Cdrecord 2.x
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 9.2
- MandrakeSoft, Mandrake Linux 9.2 AMD64
- SGI, Advanced Linux Environment 3
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 10 F...
- Turbolinux, Turbolinux Appliance Server 1.0
- Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
Remedy:
For Mandrake Linux:
Upgrade to the latest cdrecord package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2004:091 for more information. See References.
Mandrake Linux 9.2: 2.01-0.a18.2.1.92mdk or later
Mandrake Linux 10.0: 2.01-0.a28.2.100mdk or later
For Gentoo Linux:
Upgrade to the latest version of cdrecord (.01_alpha37-r1, 2.01_alpha28-r2 or later), as listed in GLSA 200409-18. See References.
For Turbolinux:
Upgrade to the latest cdrtools package, as listed below. Refer to Turbolinux Security Advisory TLSA-2004-26 for more information. See References.
Turbolinux Appliance Server 1.0 Hosting Edition and Turbolinux Appliance Server 1.0 Workgroup Edition: 2.0-9 or later
Turbolinux 10 Desktop: 2.0-9 or later
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Privileges
References:
- Cdrecord Web page, Cdrecord release information at http://cdrecord.berlios.de/old/private/cdrecord.html.
- SGI Security Advisory 20060401-01-U, SGI Advanced Linux Environment 3 Security Update #56 at ftp://patches.sgi.com/support/free/security/advisories/20060401-01.U.asc.
- BID-11075: CDRTools RSH Environment Variable Privilege Escalation Vulnerability
- CVE-2004-0806: cdrecord in the cdrtools package before 2.01, when installed setuid root, does not properly drop privileges before executing a program specified in the RSH environment variable, which allows local users to gain privileges.
- GLSA-200409-18: cdrtools: Local root vulnerability in cdrecord if set SUID root
- MDKSA-2004:091: Updated cdrecord packages fix local root vulnerability
- SA12481: cdrecord Privilege Escalation Vulnerability
- SECTRACK ID: 1011091: cdrtools Lets Local Users Obtain Root Privileges
Reported:
Sep 08, 2004
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