OpenSSL/SSLeay Pseudo-Random Number Generator missing encryption

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in OpenSSL and SSLeay. This vulnerability affects unknown code of the component Pseudo-Random Number Generator. Such manipulation leads to missing encryption. This vulnerability is documented as CVE-2001-1141. There is not any exploit available. This vulnerability has a historic impact due to its background and reception. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in OpenSSL and SSLeay (Network Encryption Software). Affected by this issue is an unknown functionality of the component Pseudo-Random Number Generator. The manipulation with an unknown input leads to a missing encryption vulnerability. Using CWE to declare the problem leads to CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. Impacted is confidentiality. CVE summarizes:

The Pseudo-Random Number Generator (PRNG) in SSLeay and OpenSSL before 0.9.6b allows attackers to use the output of small PRNG requests to determine the internal state information, which could be used by attackers to predict future pseudo-random numbers.

The weakness was released 07/10/2001 by Markku-Juhani O. Saarinen with OpenSSL as confirmed posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2001-1141. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/09/2019). The MITRE ATT&CK project declares the attack technique as T1600. This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 13880 (Mandrake Linux Security Advisory : openssl (MDKSA-2001:065)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (6823), Tenable (13880), SecurityFocus (BID 3004†), OSVDB (853†) and Vulnerability Center (SBV-1216†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • OpenSSL up to 0.9.6a
  • SSLeay up to 0.9.1

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
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: Missing encryption
CWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 13880
Nessus Name: Mandrake Linux Security Advisory : openssl (MDKSA-2001:065)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/10/2001 🔍
07/10/2001 +0 days 🔍
07/10/2001 +0 days 🔍
07/10/2001 +0 days 🔍
07/18/2001 +8 days 🔍
02/18/2003 +580 days 🔍
06/18/2003 +119 days 🔍
07/31/2004 +409 days 🔍
07/07/2014 +3628 days 🔍
05/09/2019 +1767 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: securityfocus.com⛔
Researcher: Markku-Juhani O. Saarinen
Organization: OpenSSL
Status: Confirmed

CVE: CVE-2001-1141 (🔍)
GCVE (CVE): GCVE-0-2001-1141
GCVE (VulDB): GCVE-100-16976
X-Force: 6823 - OpenSSL and SSLeay brute force attack can be used to determine internal PRNG state
SecurityFocus: 3004 - OpenSSL PRNG Internal State Disclosure Vulnerability
OSVDB: 853 - OpenSSL PRNG Information Disclosure
Vulnerability Center: 1216 - SSLeay and OpenSSL Allow Prediction of Future Pseudo-Random Numbers, Medium

Entryinfo

Created: 07/07/2014 12:56
Updated: 05/09/2019 23:40
Changes: 07/07/2014 12:56 (76), 05/09/2019 23:40 (1)
Complete: 🔍
Cache ID: 216::103

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