OpenSSH 4.3p2 access control

HistoryDiffrelatejsonxmlCTI

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.
7.9	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in OpenSSH 4.3p2. It has been rated as problematic. This vulnerability affects unknown code. This manipulation causes access control. This vulnerability is handled as CVE-2008-1483. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in OpenSSH 4.3p2 (Connectivity Software). Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

OpenSSH 4.3p2, and probably other versions, allows local users to hijack forwarded X connections by causing ssh to set DISPLAY to :10, even when another process is listening on the associated port, as demonstrated by opening TCP port 6010 (IPv4) and sniffing a cookie sent by Emacs.

The bug was discovered 01/28/2008. The weakness was released 03/24/2008 by Timo Juhani Lindfors (Website). It is possible to read the advisory at us-cert.gov. This vulnerability is known as CVE-2008-1483 since 03/24/2008. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/07/2019). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 56 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 73565 (AIX OpenSSH Advisory : ssh_advisory.asc), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171394 (SUSE Enterprise Linux Security Update for openssh (SUSE-SU-2018:2275-1)).

A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (41438), Tenable (73565), SecurityFocus (BID 28444†), OSVDB (43745†) and Secunia (SA30347†). Entries connected to this vulnerability are available at VDB-42790, VDB-42001, VDB-42000 and VDB-41999. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Connectivity Software

Name

OpenSSH

Version

4.3p2

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.4
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 73565
Nessus Name: AIX OpenSSH Advisory : ssh_advisory.asc
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61029
OpenVAS Name: Debian Security Advisory DSA 1576-1 (openssh)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

01/28/2008 🔍
03/24/2008 +56 days 🔍
03/24/2008 +0 days 🔍
03/24/2008 +0 days 🔍
03/24/2008 +0 days 🔍
03/25/2008 +1 days 🔍
03/26/2008 +1 days 🔍
03/30/2008 +4 days 🔍
05/21/2008 +52 days 🔍
05/23/2008 +2 days 🔍
04/16/2014 +2154 days 🔍
03/16/2015 +334 days 🔍
08/07/2019 +1605 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Researcher: Timo Juhani Lindfors
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-1483 (🔍)
GCVE (CVE): GCVE-0-2008-1483
GCVE (VulDB): GCVE-100-41671

OVAL: 🔍

X-Force: 41438
SecurityFocus: 28444 - OpenSSH X Connections Session Hijacking Vulnerability
Secunia: 30347 - HP-UX Secure Shell Unauthorized Access Vulnerability, Less Critical
OSVDB: 43745 - CVE-2008-1483 - OpenBSD - OpenSSH - Session Hijacking Issue
SecurityTracker: 1019707
Vulnerability Center: 18042 - OpenSSH 4.3p2 Local Forwarded X11 Connections Hijacking Vulnerability, Medium
Vupen: ADV-2008-0994

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/07/2019 21:02
Changes: 03/16/2015 17:00 (85), 08/07/2019 21:02 (4)
Complete: 🔍
Cache ID: 216::103