OpenBSD OpenSSH up to 4.1p1 information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in OpenBSD OpenSSH. The affected element is an unknown function. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2005-2798. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OpenBSD OpenSSH (Connectivity Software). This issue affects an unknown code. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

sshd in OpenSSH before 4.2, when GSSAPIDelegateCredentials is enabled, allows GSSAPI credentials to be delegated to clients who log in using non-GSSAPI methods, which could cause those credentials to be exposed to untrusted users or hosts.

The bug was discovered 09/02/2005. The weakness was shared 09/01/2005 by Paul Moore (Website). It is possible to read the advisory at secunia.com. The identification of this vulnerability is CVE-2005-2798 since 09/06/2005. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 20626 (Ubuntu 4.10 / 5.04 : openssh vulnerability (USN-209-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118141 (Red Hat Update for OpenSSH (RHSA-2005:527)).

Upgrading to version 4.2 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 Tenable (20626), SecurityFocus (BID 14729†), OSVDB (19141†), Secunia (SA16686†) and SecurityTracker (ID 1014845†). The entries VDB-1584, VDB-1723, VDB-1724 and VDB-82896 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20626
Nessus Name: Ubuntu 4.10 / 5.04 : openssh vulnerability (USN-209-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 902488
OpenVAS Name: OpenSSH sshd GSSAPI Credential Disclosure Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: OpenSSH 4.2

Timelineinfo

09/01/2005 🔍
09/01/2005 +0 days 🔍
09/01/2005 +0 days 🔍
09/02/2005 +0 days 🔍
09/02/2005 +0 days 🔍
09/02/2005 +0 days 🔍
09/02/2005 +0 days 🔍
09/06/2005 +3 days 🔍
09/06/2005 +0 days 🔍
09/12/2005 +6 days 🔍
10/17/2005 +35 days 🔍
01/15/2006 +90 days 🔍
03/11/2015 +3342 days 🔍
07/05/2021 +2308 days 🔍

Sourcesinfo

Vendor: openbsd.org

Advisory: secunia.com⛔
Researcher: Paul Moore
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-2798 (🔍)
GCVE (CVE): GCVE-0-2005-2798
GCVE (VulDB): GCVE-100-26219

OVAL: 🔍
IAVM: 🔍

X-Force: 24064
SecurityFocus: 14729 - OpenSSH GSSAPI Credential Disclosure Vulnerability
Secunia: 16686 - OpenSSH Two Security Issues, Less Critical
OSVDB: 19141 - OpenSSH GSSAPIAuthentication Credential Escalation
SecurityTracker: 1014845
Vulnerability Center: 9138 - OpenSSH <4.2 with GSSAPIDelegateCredentials Restrictions Bypass, Medium
Vupen: ADV-2006-0144

See also: 🔍

Entryinfo

Created: 03/11/2015 23:39
Updated: 07/05/2021 19:04
Changes: 03/11/2015 23:39 (85), 06/09/2019 11:29 (10), 07/05/2021 19:04 (3)
Complete: 🔍
Cache ID: 216::103

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