Midnight Commander cons.saver tool symlink could cause a denial of service

midnight-commander-conssaver-symlink (5519) The risk level is classified as MediumMedium Risk


Midnight Commander could allow a local attacker to launch a symlink attack to overwrite any file on the system. The cons.saver tool is installed setuid root. A local attacker can create a symbolic link to any file on the system, and cause cons.save to write a null character to the target file. An attacker could use this vulnerability to cause a denial of service attack.


Denial of Service


Apply the unofficial cons.saver patch included in the BugTraq Mailing List posting dated Mon Nov 13 2000 17:52:03. See References.

For Debian Linux 2.2:
Upgrade to the latest version of MC (4.5.42-11 or later), as listed in Debian Security Advisory 11-25-2000: See References.

For Linux-Mandrake 6.0, 6.1, 7.0, 7.1, and 7.2:
Upgrade to the latest version of MC, as listed in MandrakeSoft Security Advisory MDKSA-2000:078 : mc. See References.

For other distributions:
Contact your vendor for upgrade or patch information.


Platforms Affected:

  • GNOME Midnight Commander 4.x


Nov 13, 2000

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