OpenBSD OpenSSH input validation

CVSS Meta Temp Score
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CTI Interest Score
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9.3$25k-$100k0.00

Summaryinfo

A vulnerability has been found in OpenBSD OpenSSH and classified as critical. Affected is an unknown function. The manipulation leads to input validation. This vulnerability is listed as CVE-2008-3844. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in OpenBSD OpenSSH (Connectivity Software) (the affected version unknown). This issue affects an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Certain Red Hat Enterprise Linux (RHEL) 4 and 5 packages for OpenSSH, as signed in August 2008 using a legitimate Red Hat GPG key, contain an externally introduced modification (Trojan Horse) that allows the package authors to have an unknown impact. NOTE: since the malicious packages were not distributed from any official Red Hat sources, the scope of this issue is restricted to users who may have obtained these packages through unofficial distribution points. As of 20080827, no unofficial distributions of this software are known.

The bug was discovered 08/22/2008. The weakness was presented 08/27/2008 with Red Hat (Website). It is possible to read the advisory at redhat.com. The identification of this vulnerability is CVE-2008-3844 since 08/27/2008. 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 pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 08/16/2019).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 34030 (Remote host has a compromised Red Hat OpenSSH package intalled), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155988 (Oracle Enterprise Linux Update for OpenSSH (ELSA-2008-0855)).

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 databases at X-Force (44747), Tenable (34030), SecurityFocus (BID 30794†), OSVDB (47635†) and Secunia (SA31575†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 9.3
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: Input validation
CWE: CWE-20
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: 34030
Nessus Name: Remote host has a compromised Red Hat OpenSSH package intalled
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2008-0855
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/22/2008 🔍
08/22/2008 +0 days 🔍
08/22/2008 +0 days 🔍
08/22/2008 +0 days 🔍
08/22/2008 +0 days 🔍
08/27/2008 +5 days 🔍
08/27/2008 +0 days 🔍
08/27/2008 +0 days 🔍
08/27/2008 +0 days 🔍
08/31/2008 +4 days 🔍
03/17/2015 +2389 days 🔍
08/16/2019 +1613 days 🔍

Sourcesinfo

Vendor: openbsd.org

Advisory: redhat.com
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-3844 (🔍)
GCVE (CVE): GCVE-0-2008-3844
GCVE (VulDB): GCVE-100-43823

OVAL: 🔍
IAVM: 🔍

X-Force: 44747
SecurityFocus: 30794 - Red Hat OpenSSH Backdoor Vulnerability
Secunia: 31575 - Red Hat Update for Tampered OpenSSH Packages, Moderately Critical
OSVDB: 47635 - CVE-2008-3844 - Red Hat - RHEL - Backdoor Issue
SecurityTracker: 1020730
Vulnerability Center: 19336 - Certain Red Hat Enterprise Linux (RHEL) 4 and 5 Packages for OpenSSH Contain a Trojan Horse, High
Vupen: ADV-2008-2821

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/16/2019 09:47
Changes: 03/17/2015 16:11 (81), 08/16/2019 09:47 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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