Executive Summary
Summary | |
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Title | New sudo packages fix privilege escalation |
Informations | |||
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Name | DSA-946 | First vendor Publication | 2006-01-20 |
Vendor | Debian | Last vendor Modification | 2006-04-08 |
Severity (Vendor) | N/A | Revision | 2 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 7.2 | Attack Range | Local |
Cvss Impact Score | 10 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
The former correction to vulnerabilities in the sudo package worked fine but were too strict for some environments. Therefore we have reviewed the changes again and allowed some environment variables to go back into the privileged execution environment. Hence, this update. The configuration option "env_reset" is now activated by default. It will preserve only the environment variables HOME, LOGNAME, PATH, SHELL, TERM, DISPLAY, XAUTHORITY, XAUTHORIZATION, LANG, LANGUAGE, LC_*, and USER in addition to the separate SUDO_* variables. For completeness please find below the original advisory text: It has been discovered that sudo, a privileged program, that provides limited super user privileges to specific users, passes several environment variables to the program that runs with elevated privileges. In the case of include paths (e.g. for Perl, Python, Ruby or other scripting languages) this can cause arbitrary code to be executed as privileged user if the attacker points to a manipulated version of a system library. This update alters the former behaviour of sudo and limits the number of supported environment variables to LC_*, LANG, LANGUAGE and TERM. Additional variables are only passed through when set as env_check in /etc/sudoers, which might be required for some scripts to continue to work. For the old stable distribution (woody) this problem has been fixed in version 1.6.6-1.6. For the stable distribution (sarge) this problem has been fixed in version 1.6.8p7-1.4. For the unstable distribution (sid) the same behaviour will be implemented soon. |
Original Source
Url : http://www.debian.org/security/2006/dsa-946 |
CPE : Common Platform Enumeration
OpenVAS Exploits
Date | Description |
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2008-01-17 | Name : Debian Security Advisory DSA 946-1 (sudo) File : nvt/deb_946_1.nasl |
2008-01-17 | Name : Debian Security Advisory DSA 946-2 (sudo) File : nvt/deb_946_2.nasl |
0000-00-00 | Name : Slackware Advisory SSA:2006-045-08 sudo File : nvt/esoft_slk_ssa_2006_045_08.nasl |
Open Source Vulnerability Database (OSVDB)
Id | Description |
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20764 | Sudo PERL5OPT Environment Cleaning Multiple Variable Privilege Escalation Sudo contain a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when a user is able to run perl scripts via Sudo, and the perl scripts to not have the taint flag (-T). This flaw may lead to a loss of integrity. |
Nessus® Vulnerability Scanner
Date | Description |
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2006-12-16 | Name : The remote Mandrake Linux host is missing a security update. File : mandrake_MDKSA-2006-159.nasl - Type : ACT_GATHER_INFO |
2006-10-14 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-946.nasl - Type : ACT_GATHER_INFO |
2006-02-15 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2006-045-08.nasl - Type : ACT_GATHER_INFO |
2006-01-21 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-235-1.nasl - Type : ACT_GATHER_INFO |
2006-01-21 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-235-2.nasl - Type : ACT_GATHER_INFO |
2006-01-15 | Name : The remote Mandrake Linux host is missing a security update. File : mandrake_MDKSA-2005-234.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2014-02-17 11:34:49 |
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