Debian dpkg up to 1.16.15/1.17.24 Signature Check access control

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Debian dpkg up to 1.16.15/1.17.24. It has been rated as problematic. The affected element is an unknown function of the component Signature Check Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2015-0840. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Debian dpkg up to 1.16.15/1.17.24 and classified as critical. This issue affects an unknown function of the component Signature Check Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, and integrity. The summary by CVE is:

The dpkg-source command in Debian dpkg before 1.16.16 and 1.17.x before 1.17.25 allows remote attackers to bypass signature verification via a crafted Debian source control file (.dsc).

The weakness was published 04/13/2015 by Jann Horn (Website). It is possible to read the advisory at ubuntu.com. The identification of this vulnerability is CVE-2015-0840 since 01/07/2015. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 82670 (Debian DSA-3217-1 : dpkg - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115113 (Fedora Security Update for dpkg (FEDORA-2015-7342)).

Upgrading to version 1.16.16 or 1.17.25 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (82670), SecurityFocus (BID 74039†) and Vulnerability Center (SBV-49798†). Similar entry is available at VDB-68130. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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: 82670
Nessus Name: Debian DSA-3217-1 : dpkg - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703217
OpenVAS Name: Debian Security Advisory DSA 3217-1 (dpkg - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: dpkg 1.16.16/1.17.25

Timelineinfo

01/07/2015 🔍
04/09/2015 +92 days 🔍
04/09/2015 +0 days 🔍
04/10/2015 +1 days 🔍
04/13/2015 +3 days 🔍
04/13/2015 +0 days 🔍
04/14/2015 +1 days 🔍
04/21/2015 +7 days 🔍
05/03/2022 +2569 days 🔍

Sourcesinfo

Vendor: debian.org

Advisory: USN-2566-1
Researcher: Jann Horn
Status: Not defined

CVE: CVE-2015-0840 (🔍)
GCVE (CVE): GCVE-0-2015-0840
GCVE (VulDB): GCVE-100-74795

OVAL: 🔍

SecurityFocus: 74039 - Debian 'dpkg' Package CVE-2015-0840 Information Disclosure Vulnerability
Vulnerability Center: 49798 - Debian dpkg before 1.16.16 and 1.17.x before 1.17.25 Remote Bypass Restrictions via a Crafted .dsc File, Medium

See also: 🔍

Entryinfo

Created: 04/14/2015 09:51
Updated: 05/03/2022 20:19
Changes: 04/14/2015 09:51 (65), 06/27/2017 03:09 (9), 05/03/2022 20:11 (3), 05/03/2022 20:19 (1)
Complete: 🔍
Cache ID: 216:7DD:103

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