Matt Johnston Dropbear SSH Server up to 0.53 resource management

CVSS Meta Temp Score
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CTI Interest Score
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9.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Matt Johnston Dropbear SSH Server up to 0.53. This vulnerability affects unknown code. The manipulation leads to resource management. This vulnerability is traded as CVE-2012-0920. There is no exploit available.

Detailsinfo

A vulnerability was found in Matt Johnston Dropbear SSH Server up to 0.53 (SSH Server Software) and classified as critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."

The weakness was shared 06/05/2012 by Danny (Website). It is possible to read the advisory at mantor.org. The identification of this vulnerability is CVE-2012-0920 since 01/26/2012. The exploitation is known to be difficult. The attack may be initiated remotely. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 70160 (GLSA-201309-20 : Dropbear: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 42399 (Dropbear SSH Server Use-After-Free Remote Code Execution Vulnerability).

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 (73444), Tenable (70160), SecurityFocus (BID 52159†), OSVDB (79590†) and Secunia (SA48147†). The entries VDB-23370, VDB-35213, VDB-85266 and VDB-100037 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.9

VulDB Base Score: 9.9
VulDB Temp Score: 9.9
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: Resource management
CWE: CWE-399 / CWE-404
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: 70160
Nessus Name: GLSA-201309-20 : Dropbear: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892456
OpenVAS Name: Debian Security Advisory DSA 2456-1 (dropbear - use after free
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

01/26/2012 🔍
02/24/2012 +29 days 🔍
02/24/2012 +0 days 🔍
03/12/2012 +17 days 🔍
06/05/2012 +85 days 🔍
06/05/2012 +0 days 🔍
09/27/2013 +479 days 🔍
03/23/2015 +542 days 🔍
01/02/2025 +3573 days 🔍

Sourcesinfo

Advisory: dsa-2456
Researcher: Danny
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-0920 (🔍)
GCVE (CVE): GCVE-0-2012-0920
GCVE (VulDB): GCVE-100-60899

OVAL: 🔍

X-Force: 73444
SecurityFocus: 52159 - Dropbear SSH Server Use After Free Remote Code Execution Vulnerability
Secunia: 48147
OSVDB: 79590
Vulnerability Center: 34603 - Dropbear SSH Server 0.52 Through 2011.54 Use-After-Free Remote Code Execution Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 01/02/2025 18:25
Changes: 03/23/2015 16:50 (61), 04/10/2017 11:36 (12), 12/03/2021 10:52 (3), 12/03/2021 10:57 (1), 12/03/2021 11:03 (1), 01/02/2025 18:25 (16)
Complete: 🔍
Cache ID: 216:B9F:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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