One Laptop Per Child OLPC Linux Build_542 access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in One Laptop Per Child OLPC Linux Build_542. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2007-4849. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in One Laptop Per Child OLPC Linux Build_542. This vulnerability affects an unknown code block. 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, integrity, and availability. CVE summarizes:

JFFS2, as used on One Laptop Per Child (OLPC) build 542 and possibly other Linux systems, when POSIX ACL support is enabled, does not properly store permissions during (1) inode creation or (2) ACL setting, which might allow local users to access restricted files or directories after a remount of a filesystem, related to "legacy modes" and an inconsistency between dentry permissions and inode permissions.

The bug was discovered 08/09/2007. The weakness was shared 09/12/2007 (Website). The advisory is shared for download at lists.infradead.org. This vulnerability was named CVE-2007-4849 since 09/12/2007. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 34 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 29740 (Ubuntu 6.10 / 7.04 / 7.10 : linux-source-2.6.17/20/22 vulnerabilities (USN-558-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (36596), Tenable (29740), SecurityFocus (BID 25838†), OSVDB (40564†) and Secunia (SA26978†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 29740
Nessus Name: Ubuntu 6.10 / 7.04 / 7.10 : linux-source-2.6.17/20/22 vulnerabilities (USN-558-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58636
OpenVAS Name: Debian Security Advisory DSA 1378-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

08/09/2007 🔍
08/09/2007 +0 days 🔍
09/12/2007 +34 days 🔍
09/12/2007 +0 days 🔍
09/12/2007 +0 days 🔍
09/27/2007 +15 days 🔍
12/18/2007 +82 days 🔍
12/19/2007 +1 days 🔍
12/25/2007 +6 days 🔍
03/16/2015 +2638 days 🔍
08/01/2019 +1599 days 🔍

Sourcesinfo

Advisory: lists.infradead.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-4849 (🔍)
GCVE (CVE): GCVE-0-2007-4849
GCVE (VulDB): GCVE-100-38764

OVAL: 🔍

X-Force: 36596
SecurityFocus: 25838 - Linux Kernel JFFS2 Filesystem Security Bypass Vulnerability
Secunia: 26978
OSVDB: 40564 - CVE-2007-4849 - Linux - Security Bypass Issue
Vulnerability Center: 17171 - JFFS2 as Used in OLPC Build 542 Allows Local Users Access to Restricted Files, Medium

Entryinfo

Created: 03/16/2015 12:18
Updated: 08/01/2019 21:42
Changes: 03/16/2015 12:18 (70), 08/01/2019 21:42 (8)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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