Debian reprepro up to 2.2.3 access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Debian reprepro up to 2.2.3. This affects an unknown part. Performing a manipulation results in access control. This vulnerability is reported as CVE-2007-4739. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Debian reprepro up to 2.2.3. This affects some unknown processing. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on integrity. The summary by CVE is:

reprepro 1.3.0 through 2.2.3 does not properly verify signatures when updating repositories, which allows remote attackers to construct and distribute an ostensibly valid Release.gpg file by signing it with an unknown key, related to the update command.

The bug was discovered 08/19/2007. The weakness was disclosed 09/02/2007 (Website). It is possible to read the advisory at secunia.com. This vulnerability is uniquely identified as CVE-2007-4739 since 09/06/2007. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for 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 was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 27549 (Debian DSA-1394-1 : reprepro - authentication bypass), 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 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (36432), Tenable (27549), SecurityFocus (BID 25537†), OSVDB (40172†) and Secunia (SA26678†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Access control
CWE: CWE-264
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: 27549
Nessus Name: Debian DSA-1394-1 : reprepro - authentication bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58692
OpenVAS Name: Debian Security Advisory DSA 1394-1 (reprepro)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

08/19/2007 🔍
09/02/2007 +14 days 🔍
09/03/2007 +0 days 🔍
09/03/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/06/2007 +2 days 🔍
09/06/2007 +0 days 🔍
09/06/2007 +0 days 🔍
10/23/2007 +47 days 🔍
10/25/2007 +2 days 🔍
10/28/2007 +3 days 🔍
03/16/2015 +2696 days 🔍
07/29/2019 +1596 days 🔍

Sourcesinfo

Vendor: debian.org

Advisory: secunia.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-4739 (🔍)
GCVE (CVE): GCVE-0-2007-4739
GCVE (VulDB): GCVE-100-38667

OVAL: 🔍

X-Force: 36432
SecurityFocus: 25537 - reprepro Update Repository Signature Verification Security Bypass Vulnerability
Secunia: 26678
OSVDB: 40172 - reprepro Repository Update Improper Signature Verification Weakness
Vulnerability Center: 16666 - reprepro 1.3.0 - 2.2.3 Signature Verification Bypass when Updating Repositories, Medium

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/29/2019 09:52
Changes: 03/16/2015 12:18 (78), 07/29/2019 09:52 (3)
Complete: 🔍
Cache ID: 216:9FE:103

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

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