KDE Display Manager (KDM) /.dmrc user session type symlink
| kde-kdm-symlink (27181) |  Medium Risk |
Description:
The KDE Display Manager (KDM) manages the /.dmrc user session file in an insecure manner. A local attacker could exploit this vulnerability using symbolic link attacks to read arbitrary files on the system with elevated privileges.
Consequences:
File Manipulation
Remedy:
Apply the patch for this vulnerability, as listed in KDE Security Advisory 2006-06-14. See References.
For Ubuntu Linux:
Refer to USN-301-1 for patch, upgrade, or suggested workaround information. See References.
For Mandriva Linux:
Refer to Mandriva Security Advisory MDKSA-2006:105 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0584-4 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-06-23 for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1156-1 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:039 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for patch or upgrade information.
References:
- BugTraq Mailing List, Thu Jun 15 2006 - 14:01:16 CDT : rPSA-2006-0106-1 kdebase.
- BugTraq Mailing List, Wed Jun 14 2006 - 13:30:39 CDT : [KDE Security Advisory] KDM symlink attack vulnerability.
- KDE Security Advisory 2006-06-14: KDM symlink attack vulnerability.
- ASA-2006-127: kdebase security update (RHSA-2006-0548)
- BID-18431: KDE KDM Session Type Symbolic Link Vulnerability
- CVE-2006-2449: KDE Display Manager (KDM) in KDE 3.2.0 up to 3.5.3 allows local users to read arbitrary files via a symlink attack related to the session type for login.
- DSA-1156: kdebase -- programming error
- GLSA-200606-23: KDM: Symlink vulnerability
- MDKSA-2006:105: Updated kdebase packages fix local vulnerability in kdm
- MDKSA-2006:106: Updated mdkkdm packages fix local vulnerability
- OSVDB ID: 26511: KDE KDM Login Sesson Type Symlink Arbitrary File Read
- RHSA-2006-0548: kdebase security update
- SA20602: KDE KDM Arbitrary File Reading Vulnerability
- SECTRACK ID: 1016297: KDE KDM Symlink Bug Lets Local Users View Files
- SUSE-SA:2006:039: KDM information disclosure
- USN-301-1: kdm vulnerability
- VUPEN/ADV-2006-2355: KDE Display Manager (KDM) client.c Local Information Disclosure Vulnerability
Platforms Affected:
- Canonical Ubuntu 5.04
- Canonical Ubuntu 5.10
- Canonical Ubuntu 6.06 LTS
- Debian Debian Linux 3.1
- Gentoo Linux
- KDE K Desktop Environment (KDE) 3.2.0 - 3.5.3
- MandrakeSoft Mandrake Linux 2006
- MandrakeSoft Mandrake Linux 2006 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- Novell Linux Desktop 9
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 Desktop
- rPath rPath Linux 1
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.1
- SUSE SuSE Linux 9.2
- SUSE SuSE Linux 9.3
- SuSE SuSE SLES 9
Reported:
Jun 14, 2006
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