OpenSSL up to 1.0.0 cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenSSL up to 1.0.0. It has been classified as problematic. The impacted element is an unknown function. This manipulation causes cryptographic issue. The identification of this vulnerability is CVE-2011-1945. There is no exploit available.

Detailsinfo

A vulnerability has been found in OpenSSL up to 1.0.0 (Network Encryption Software) and classified as problematic. Affected by this vulnerability is an unknown code block. The manipulation 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. The summary by CVE is:

The elliptic curve cryptography (ECC) subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digital Signature Algorithm (ECDSA) is used for the ECDHE_ECDSA cipher suite, does not properly implement curves over binary fields, which makes it easier for context-dependent attackers to determine private keys via a timing attack and a lattice calculation.

The weakness was shared 05/31/2011 as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2011-1945. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/05/2024). The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 75596 (openSUSE Security Update : libopenssl-devel (openSUSE-SU-2011:0634-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121226 (Apple Mountain Lion v10.8.4 and Security Update 2013-002 Not Installed (APPLE-SA-2013-06-04-1)).

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 (67507), Tenable (75596), SecurityFocus (BID 47888†) and Vulnerability Center (SBV-31880†). The entries VDB-8858, VDB-8859, VDB-8861 and VDB-8864 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Name

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License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
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: 75596
Nessus Name: openSUSE Security Update : libopenssl-devel (openSUSE-SU-2011:0634-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70243
OpenVAS Name: Debian Security Advisory DSA 2309-1 (openssl)
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

05/09/2011 🔍
05/17/2011 +8 days 🔍
05/17/2011 +0 days 🔍
05/31/2011 +14 days 🔍
05/31/2011 +0 days 🔍
06/20/2011 +20 days 🔍
06/13/2014 +1089 days 🔍
03/23/2015 +283 days 🔍
08/05/2024 +3423 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: dsa-2309
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-1945 (🔍)
GCVE (CVE): GCVE-0-2011-1945
GCVE (VulDB): GCVE-100-57559

OVAL: 🔍
IAVM: 🔍

CERT: 🔍
X-Force: 67507
SecurityFocus: 47888 - OpenSSL ECDSA Timing Attack Local Information Disclosure Vulnerability
Secunia: 44935
Vulnerability Center: 31880 - ECDSA for OpenSSL 1.0.0d and earlier Allows to Obtain the Private Key of a TLS Server, Low

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 08/05/2024 12:17
Changes: 03/23/2015 16:50 (64), 03/24/2017 10:10 (9), 11/08/2021 07:28 (6), 11/08/2021 07:34 (1), 11/08/2021 07:40 (1), 08/05/2024 12:17 (16)
Complete: 🔍
Cache ID: 216::103

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

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