Valve Software Half-Life Dedicated Server 3.1.3 changelevel Command format string

CVSS Meta Temp Score
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Valve Software Half-Life Dedicated Server 3.1.3. Affected is an unknown function of the component changelevel Command Handler. Executing a manipulation can lead to format string. This vulnerability is registered as CVE-2000-0969. Furthermore, an exploit is available. This vulnerability is historically impactful due to its background and the reception it garnered. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Valve Software Half-Life Dedicated Server 3.1.3. It has been declared as critical. This vulnerability affects an unknown part of the component changelevel Command Handler. The manipulation with an unknown input leads to a format string vulnerability. The CWE definition for the vulnerability is CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Format string vulnerability in Half Life dedicated server build 3104 and earlier allows remote attackers to execute arbitrary commands by injecting format strings into the changelevel command, via the system console or rcon.

The weakness was published 01/22/2001 by FIRST as not defined posting (Bugtraq). The advisory is shared for download at archives.neohapsis.com. This vulnerability was named CVE-2000-0969. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/06/2019). This vulnerability has a historic impact due to its background and reception.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5413), SecurityFocus (BID 1847†), OSVDB (6983†) and Secunia (SA7876†). Similar entry is available at VDB-16179. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Format string
CWE: CWE-134 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Timelineinfo

10/24/2000 🔍
12/19/2000 +56 days 🔍
01/22/2001 +34 days 🔍
04/09/2004 +1172 days 🔍
07/01/2014 +3735 days 🔍
04/06/2019 +1740 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: FIRST
Status: Not defined

CVE: CVE-2000-0969 (🔍)
GCVE (CVE): GCVE-0-2000-0969
GCVE (VulDB): GCVE-100-16180
X-Force: 5413 - Half-Life Server rcon format string
SecurityFocus: 1847 - Halflife Linux Server rcon Vulnerabilities
Secunia: 7876
OSVDB: 6983 - Half Life Server Format String Command Execution

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

Entryinfo

Created: 07/02/2014 00:46
Updated: 04/06/2019 14:47
Changes: 07/02/2014 00:46 (63), 04/06/2019 14:47 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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