GNU C Library 2.1.1 ld_library_path unsetenv privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in GNU C Library 2.1.1. Impacted is the function unsetenv in the library ld_library_path. This manipulation causes privileges management. This vulnerability is registered as CVE-2000-0824. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU C Library 2.1.1 (Software Library). It has been declared as critical. Affected by this vulnerability is the function unsetenv in the library ld_library_path. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The unsetenv function in glibc 2.1.1 does not properly unset an environmental variable if the variable is provided twice to a program, which could allow local users to execute arbitrary commands in setuid programs by specifying their own duplicate environmental variables such as LD_PRELOAD or LD_LIBRARY_PATH.

The weakness was published 11/14/2000 (Website). It is possible to read the advisory at marc.info. This vulnerability is known as CVE-2000-0824. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 61833 (Mandrake Linux Security Advisory : glibc (MDKSA-2000:040)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5173), Exploit-DB (19503), Tenable (61833), SecurityFocus (BID 648†) and Vulnerability Center (SBV-38839†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 61833
Nessus Name: Mandrake Linux Security Advisory : glibc (MDKSA-2000:040)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/17/1999 🔍
09/17/1999 +0 days 🔍
11/14/2000 +424 days 🔍
11/14/2000 +0 days 🔍
09/06/2012 +4314 days 🔍
03/19/2013 +194 days 🔍
06/27/2014 +465 days 🔍
12/17/2024 +3826 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: marc.info
Status: Confirmed

CVE: CVE-2000-0824 (🔍)
GCVE (CVE): GCVE-0-2000-0824
GCVE (VulDB): GCVE-100-15955
X-Force: 5173
SecurityFocus: 648 - FSF GNU glibc unsetenv Vulnerability
Vulnerability Center: 38839 - Glibc 2.1.1 Local Arbitrary Command Execution due to a Flaw in the unsetenv Function, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/27/2014 18:04
Updated: 12/17/2024 14:40
Changes: 06/27/2014 18:04 (63), 04/26/2017 09:12 (3), 06/25/2021 09:03 (3), 12/17/2024 14:40 (25)
Complete: 🔍
Cache ID: 216::103

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