Juergen Weigert Screen 3.9.3/3.9.4/3.9.5 vbell_msg format string

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Juergen Weigert Screen 3.9.3/3.9.4/3.9.5. This affects an unknown function. Such manipulation of the argument vbell_msg leads to format string. This vulnerability is uniquely identified as CVE-2000-0901. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Juergen Weigert Screen 3.9.3/3.9.4/3.9.5. Affected by this issue is an unknown code block. The manipulation of the argument vbell_msg with an unknown input leads to a format string vulnerability. Using CWE to declare the problem leads to CWE-134. The product uses a function that accepts a format string as an argument, but the format string originates from an external source. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Format string vulnerability in screen 3.9.5 and earlier allows local users to gain root privileges via format characters in the vbell_msg initialization variable.

The weakness was disclosed 12/19/2000 (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is handled as CVE-2000-0901. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept.

Upgrading to version 3.9.8 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5188), Exploit-DB (20191) and SecurityFocus (BID 1641†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
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: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Screen 3.9.8

Timelineinfo

09/05/2000 🔍
12/19/2000 +105 days 🔍
12/19/2000 +0 days 🔍
07/01/2014 +4942 days 🔍
06/24/2024 +3646 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Status: Not defined

CVE: CVE-2000-0901 (🔍)
GCVE (CVE): GCVE-0-2000-0901
GCVE (VulDB): GCVE-100-16112
X-Force: 5188 - screen allows local users to obtain root privileges
SecurityFocus: 1641 - screen User Supplied Format String Vulnerability

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

Entryinfo

Created: 07/01/2014 17:17
Updated: 06/24/2024 09:08
Changes: 07/01/2014 17:17 (52), 05/28/2018 09:14 (7), 06/24/2024 09:08 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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