OpenSSL 0.9.8 public cryptographic issue

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in OpenSSL 0.9.8. Affected by this vulnerability is an unknown functionality. This manipulation of the argument public causes cryptographic issue. The identification of this vulnerability is CVE-2011-5095. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in OpenSSL 0.9.8 (Network Encryption Software). Affected by this vulnerability is some unknown processing. The manipulation of the argument public with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

The Diffie-Hellman key-exchange implementation in OpenSSL 0.9.8, when FIPS mode is enabled, does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-1923.

The issue has been introduced in 07/05/2005. The weakness was shared 06/20/2012 (Website). It is possible to read the advisory at discussions.nessus.org. This vulnerability is known as CVE-2011-5095 since 06/20/2012. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/04/2021). The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 2542 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 64186 (SuSE 11.1 Security Update : libopenssl (SAT Patch Number 6521)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

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 (76666), Tenable (64186) and Vulnerability Center (SBV-37156†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 4.8
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: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 64186
Nessus Name: SuSE 11.1 Security Update : libopenssl (SAT Patch Number 6521)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/05/2005 🔍
06/20/2012 +2542 days 🔍
06/20/2012 +0 days 🔍
06/20/2012 +0 days 🔍
06/20/2012 +0 days 🔍
11/12/2012 +145 days 🔍
01/25/2013 +74 days 🔍
03/23/2015 +787 days 🔍
12/04/2021 +2448 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: discussions.nessus.org
Status: Not defined

CVE: CVE-2011-5095 (🔍)
GCVE (CVE): GCVE-0-2011-5095
GCVE (VulDB): GCVE-100-61039

OVAL: 🔍

X-Force: 76666
Vulnerability Center: 37156 - OpenSSL 0.9.8 Flawed Diffie-Hellman Implementation, Medium

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/04/2021 08:53
Changes: 03/23/2015 16:50 (60), 04/20/2017 22:16 (2), 12/04/2021 08:53 (3)
Complete: 🔍
Cache ID: 216::103

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

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