Executive Summary

Summary
Title New reprepro packages fix authentication bypass
Informations
Name DSA-1394 First vendor Publication 2007-10-23
Vendor Debian Last vendor Modification 2007-10-23
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

It was discovered that reprepro, a tool to create a repository of Debian packages, when updating from a remote site only checks for the validity of known signatures, and thus does not reject packages with only unknown signatures. This allows an attacker to bypass this authentication mechanism.

The oldstable distribution (sarge) is not affected by this problem.

For the stable distribution (etch) this problem has been fixed in version 1.3.1+1-1.

For the unstable distribution (sid) this problem has been fixed in version 2.2.4-1.

We recommend that you upgrade your reprepro package.

Original Source

Url : http://www.debian.org/security/2007/dsa-1394

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18710
 
Oval ID: oval:org.mitre.oval:def:18710
Title: DSA-1394-1 reprepro - authentication bypass
Description: It was discovered that reprepro, a tool to create a repository of Debian packages, only checks the validity of known signatures when updating from a remote site, and thus does not reject packages with only unknown signatures. This allows an attacker to bypass this authentication mechanism.
Family: unix Class: patch
Reference(s): DSA-1394-1
CVE-2007-4739
Version: 7
Platform(s): Debian GNU/Linux 4.0
Product(s): reprepro
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8

OpenVAS Exploits

Date Description
2008-01-17 Name : Debian Security Advisory DSA 1394-1 (reprepro)
File : nvt/deb_1394_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
40172 reprepro Repository Update Improper Signature Verification Weakness

Nessus® Vulnerability Scanner

Date Description
2007-10-25 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1394.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:26:57
  • Multiple Updates