CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.4 | $0-$5k | 0.00 |
A vulnerability classified as critical was found in OSH 1.7.14. Affected by this vulnerability is the function getenv
of the file main.c. The manipulation of the argument $var/evar=arg
with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Buffer overflow in the environment variable substitution code in main.c in OSH 1.7-14 allows local users to inject arbitrary environment variables, such as LD_PRELOAD, via pathname arguments of the form "$VAR/EVAR=arg", which cause the EVAR portion to be appended to a buffer returned by a getenv function call.
The bug was discovered 11/10/2005. The weakness was presented 11/09/2005 by Charles Stevenson (Solar Eclipse) (Website). It is possible to read the advisory at vupen.com. This vulnerability is known as CVE-2005-3346 since 10/27/2005. 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.
A public exploit has been developed in Perl. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 22784 (Debian DSA-918-1 : osh - programming error), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.
Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (23091), Tenable (22784) and Exploit-DB (1300). See 27405 for similar entry.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 9.3VulDB Meta Temp Score: 8.4
VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍
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Nessus ID: 22784
Nessus Name: Debian DSA-918-1 : osh - programming error
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
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Timeline
10/27/2005 🔍11/09/2005 🔍
11/09/2005 🔍
11/09/2005 🔍
11/10/2005 🔍
11/10/2005 🔍
11/20/2005 🔍
12/09/2005 🔍
10/14/2006 🔍
01/22/2008 🔍
03/11/2015 🔍
08/04/2019 🔍
Sources
Advisory: vupen.com⛔Researcher: Charles Stevenson (Solar Eclipse)
Status: Not defined
Confirmation: 🔍
CVE: CVE-2005-3346 (🔍)
X-Force: 23091
Vulnerability Center: 17439 - Debian OSH Buffer Overflow Allows Local Users to Inject Arbitrary Environmental Variables, Medium
SecurityFocus: 15370 - Mike Neuman OSH Environment Variable Buffer Overflow Vulnerability
Secunia: 17527
OSVDB: 20720 - Operator Shell (osh) main.c Environment Variable Substitution Local Privilege Escalation
Vupen: ADV-2005-2378
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 03/11/2015 23:39Updated: 08/04/2019 09:17
Changes: 03/11/2015 23:39 (73), 08/04/2019 09:17 (12)
Complete: 🔍
Cache ID: 3:30F:103
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