SSH/OpenSSH PKCS#1 cryptographic issues

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

A vulnerability was found in SSH and OpenSSH (SSH Server Software) (the affected version is unknown). It has been declared as problematic. This vulnerability affects an unknown code of the component PKCS#1 Handler. The manipulation with an unknown input leads to a cryptographic issues vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain configurations, allow a remote attacker to decrypt and/or alter traffic via a "Bleichenbacher attack" on PKCS#1 version 1.5.

The bug was discovered 02/06/2001. The weakness was released 02/06/2001 with Core (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2001-0361. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/10/2019). This vulnerability is assigned to T1600 by the MITRE ATT&CK project. This vulnerability has a historic impact due to its background and reception.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 14860 (Debian DSA-023-1 : inn2 - local tempfile vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (6082) and Tenable (14860). Entry connected to this vulnerability is available at 16353.

Productinfo

Type

Name

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: 4.8
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.8
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issues
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 14860
Nessus Name: Debian DSA-023-1 : inn2 - local tempfile vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53786
OpenVAS Name: Debian Security Advisory DSA 023-1 (inn2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

01/26/2001 🔍
02/06/2001 +11 days 🔍
02/06/2001 +0 days 🔍
02/06/2001 +0 days 🔍
02/06/2001 +0 days 🔍
06/27/2001 +141 days 🔍
06/27/2001 +0 days 🔍
06/18/2003 +721 days 🔍
07/30/2003 +42 days 🔍
09/29/2004 +426 days 🔍
07/04/2014 +3565 days 🔍
05/10/2019 +1771 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Organization: Core
Status: Not defined

CVE: CVE-2001-0361 (🔍)
OVAL: 🔍

X-Force: 6082 - SSH protocol 1.5 session key recovery
Vulnerability Center: 1219 - Flaw in PKCS#1_1.5 Key Exchange Enables Decryption of SSH Session Keys, Medium
SecurityFocus: 2344 - PKCS #1 Version 1.5 Session Key Retrieval Vulnerability
OSVDB: 2116 - PKCS 1 Version 1.5 Session Key Retrieval (Bleichenbacher Attack)

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/04/2014 16:33
Updated: 05/10/2019 05:56
Changes: 07/04/2014 16:33 (80), 05/10/2019 05:56 (1)
Complete: 🔍

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