OpenSSH up to 3.9 improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$5k-$25k0.00

A vulnerability, which was classified as critical, was found in OpenSSH up to 3.9 (Connectivity Software). This affects an unknown code block. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OpenSSH 5.6 and earlier, when J-PAKE is enabled, does not properly validate the public parameters in the J-PAKE protocol, which allows remote attackers to bypass the need for knowledge of the shared secret, and successfully authenticate, by sending crafted values in each round of the protocol, a related issue to CVE-2010-4252.

The weakness was released 12/06/2010 by Martin as Bug 659297 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2010-4478. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/06/2021).

The vulnerability scanner Nessus provides a plugin with the ID 44081 (OpenSSH < 5.7 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc.. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216077 (VMware ESXi 5.5.0 Patch Release ESXi550-201501001 Missing (KB2099265)).

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 (64387) and Tenable (44081). Entries connected to this vulnerability are available at 4282 and 56678.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: Improper authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 44081
Nessus Name: OpenSSH < 5.7 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/02/2010 🔍
12/06/2010 +3 days 🔍
12/06/2010 +0 days 🔍
12/06/2010 +0 days 🔍
12/06/2010 +0 days 🔍
10/04/2011 +302 days 🔍
10/10/2011 +6 days 🔍
03/19/2015 +1256 days 🔍
10/06/2021 +2393 days 🔍

Sourcesinfo

Advisory: Bug 659297
Researcher: Martin
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-4478 (🔍)
OVAL: 🔍

X-Force: 64387
Vulnerability Center: 33490 - OpenSSH 5.6 and Earlier with J-PAKE Enabled Authentication Bypass Vulnerability, Medium
SecurityFocus: 45304 - OpenSSH J-PAKE Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 03/19/2015 14:37
Updated: 10/06/2021 09:25
Changes: 03/19/2015 14:37 (58), 04/03/2017 17:50 (9), 10/06/2021 09:21 (4), 10/06/2021 09:25 (1)
Complete: 🔍

Discussion

cndigital (+0)
4 years ago
how to test this vulnerability is valid on affected system

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