gnome libzvt2 1.4.2.19 Helper authentication spoofing

EntryHistoryDiffjsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.8	$0-$5k	0.00

A vulnerability was found in gnome libzvt2 1.4.2.19. It has been classified as problematic. Affected is an unknown part of the component Helper. The manipulation with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on integrity. CVE summarizes:

gnome-pty-helper in GNOME libzvt2 and libvte4 allows local users to spoof the logon hostname via a modified DISPLAY environment variable. NOTE: the severity of this issue has been disputed.

The weakness was shared 10/05/2005 by Paul Szabo (Website). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability is traded as CVE-2005-0023 since 01/05/2005. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

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

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (22496).

Productinfo

Vendor

gnome

Name

libzvt2

Version

1.4.2.19

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
ATT&CK: Unknown

Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/05/2005 🔍
10/03/2005 +271 days 🔍
10/03/2005 +0 days 🔍
10/05/2005 +2 days 🔍
10/05/2005 +0 days 🔍
03/11/2015 +3444 days 🔍
07/12/2018 +1219 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: marc.theaimsgroup.com
Researcher: Paul Szabo
Status: Not defined

CVE: CVE-2005-0023 (🔍)
X-Force: 22496 - Gnome libzvt gnome-pty-helper spoof
SecurityFocus: 15004 - Gnome-PTY-Helper UTMP Hostname Spoofing Vulnerability
Secunia: 17023 - GNOME libzvt "gnome-pty-helper" Hostname Spoofing, Not Critical
Vupen: ADV-2005-1931

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

Entryinfo

Created: 03/11/2015 23:39
Updated: 07/12/2018 08:33
Changes: 03/11/2015 23:39 (55), 07/12/2018 08:33 (8)
Complete: 🔍