Gentoo Linux 1.11-r2 Nullmailer etc/nullmailer/remotes access control

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Gentoo Linux 1.11-r2. This vulnerability affects unknown code of the file etc/nullmailer/remotes of the component Nullmailer. This manipulation causes access control. This vulnerability is registered as CVE-2013-4223. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Gentoo Linux 1.11-r2. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the file etc/nullmailer/remotes of the component Nullmailer. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality. The summary by CVE is:

The Gentoo Nullmailer package before 1.11-r2 uses world-readable permissions for /etc/nullmailer/remotes, which allows local users to obtain SMTP authentication credentials by reading the file.

The weakness was published 08/09/2013 by Agostino Sarubbo as nullmailer world readable /etc/nullmailer/remotes as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is known as CVE-2013-4223 since 06/12/2013. An attack has to be approached locally. Required for exploitation is a single authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

Upgrading to version Nullmailer-1.11-r2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (86384), SecurityFocus (BID 61743†) and OSVDB (96177†). Additional details are provided at bugs.gentoo.org. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.5
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Linux Nullmailer-1.11-r2

Timelineinfo

06/12/2013 🔍
08/09/2013 +58 days 🔍
08/09/2013 +0 days 🔍
08/09/2013 +0 days 🔍
08/14/2013 +5 days 🔍
05/23/2014 +282 days 🔍
03/21/2019 +1763 days 🔍

Sourcesinfo

Advisory: nullmailer world readable /etc/nullmailer/remotes
Researcher: Agostino Sarubbo
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-4223 (🔍)
GCVE (CVE): GCVE-0-2013-4223
GCVE (VulDB): GCVE-100-9925
X-Force: 86384 - Gentoo Linux nullmailer package insecure permissions
SecurityFocus: 61743 - Gentoo Linux nullmailer Package '/etc/nullmailer/remotes' Insecure File Permissions Vulnerability
OSVDB: 96177

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

Entryinfo

Created: 08/14/2013 16:44
Updated: 03/21/2019 10:28
Changes: 08/14/2013 16:44 (51), 03/21/2019 10:28 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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