Computer Security
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sudo protection bypass
updated since 01.03.2010
SecurityVulns ID:10655
Threat Level:
Description:when a pseudocommand is enabled, it's possible to created an executable file with the same name, it will be executed by relative name with escalated privileges.
CVE:CVE-2010-1163 (The command matching functionality in sudo 1.6.8 through 1.7.2p5 does not properly handle when a file in the current working directory has the same name as a pseudo-command in the sudoers file and the PATH contains an entry for ".", which allows local users to execute arbitrary commands via a Trojan horse executable, as demonstrated using sudoedit, a different vulnerability than CVE-2010-0426.)
 CVE-2010-0426 (sudo 1.6.x before 1.6.9p21 and 1.7.x before 1.7.2p4, when a pseudo-command is enabled, permits a match between the name of the pseudo-command and the name of an executable file in an arbitrary directory, which allows local users to gain privileges via a crafted executable file, as demonstrated by a file named sudoedit in a user's home directory.)
Original documentdocumentAgazzini Maurizio, sudoedit local privilege escalation through PATH manipulation (22.04.2010)
 documentUBUNTU, [USN-928-1] Sudo vulnerability (19.04.2010)
 documentKingcope Kingcope, Todd Miller Sudo local root exploit discovered by Slouching (02.03.2010)
 documentMANDRIVA, [ MDVSA-2010:049 ] sudo (01.03.2010)
Files:Tod Miller Sudo 1.6.x before 1.6.9p21 and 1.7.x before 1.7.2p4

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