Samba up to 3.0.24 Access Control List acl_group_override access control

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Samba up to 3.0.24. It has been classified as problematic. This impacts the function acl_group_override of the component Access Control List. This manipulation causes access control. The identification of this vulnerability is CVE-2009-1888. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Samba up to 3.0.24 (File Transfer Software) and classified as problematic. Affected by this vulnerability is the function acl_group_override of the component Access Control List. 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, and integrity. The summary by CVE is:

The acl_group_override function in smbd/posix_acls.c in smbd in Samba 3.0.x before 3.0.35, 3.1.x and 3.2.x before 3.2.13, and 3.3.x before 3.3.6, when dos filemode is enabled, allows remote attackers to modify access control lists for files via vectors related to read access to uninitialized memory.

The bug was discovered 06/23/2009. The weakness was shared 06/24/2009 by Jeremy Allison (Website). It is possible to read the advisory at vupen.com. This vulnerability is known as CVE-2009-1888 since 06/02/2009. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67947 (Oracle Linux 4 / 5 : samba (ELSA-2009-1529)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165649 (SUSE Enterprise Linux Security Update dhcp-client (SUSE-SA:2009:037)).

Upgrading to version 3.0.25 eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (51327), Tenable (67947), SecurityFocus (BID 35472†), OSVDB (55411†) and Secunia (SA35539†). The entries VDB-3810, VDB-43706, VDB-43674 and VDB-43673 are related to this item. 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: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
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-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67947
Nessus Name: Oracle Linux 4 / 5 : samba (ELSA-2009-1529)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 64311
OpenVAS Name: Debian Security Advisory DSA 1823-1 (samba)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Samba 3.0.25

Timelineinfo

06/02/2009 🔍
06/19/2009 +17 days 🔍
06/19/2009 +0 days 🔍
06/23/2009 +4 days 🔍
06/24/2009 +1 days 🔍
06/24/2009 +0 days 🔍
06/24/2009 +0 days 🔍
06/29/2009 +5 days 🔍
10/27/2009 +120 days 🔍
07/12/2013 +1354 days 🔍
03/17/2015 +613 days 🔍
09/06/2019 +1634 days 🔍

Sourcesinfo

Product: samba.org

Advisory: vupen.com⛔
Researcher: Jeremy Allison
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-1888 (🔍)
GCVE (CVE): GCVE-0-2009-1888
GCVE (VulDB): GCVE-100-48739

OVAL: 🔍

X-Force: 51327
SecurityFocus: 35472 - Samba Format String And Security Bypass Vulnerabilities
Secunia: 35539
OSVDB: 55411 - Samba ACL security bypass
SecurityTracker: 1022442
Vulnerability Center: 22721 - Samba acl_group_override function Remote Bypass Security Vulnerability via Uninitialized Memory, High
Vupen: ADV-2009-1664

See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 09/06/2019 20:49
Changes: 03/17/2015 23:38 (79), 09/06/2019 20:49 (12)
Complete: 🔍
Cache ID: 216::103

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