Red Hat Enterprise Linux kexec-tools module-setup.sh symlink

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Red Hat Enterprise Linux. Impacted is an unknown function of the file module-setup.sh of the component kexec-tools. The manipulation leads to symlink. This vulnerability is listed as CVE-2015-0267. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Red Hat Enterprise Linux (Operating System) and classified as problematic. This issue affects an unknown code of the file module-setup.sh of the component kexec-tools. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is confidentiality, and integrity. The summary by CVE is:

The Red Hat module-setup.sh script for kexec-tools, as distributed in the kexec-tools before 2.0.7-19 packages in Red Hat Enterprise Linux, allows local users to write to arbitrary files via a symlink attack on a temporary file.

The weakness was presented 05/19/2015 with Red Hat (Website). It is possible to read the advisory at rhn.redhat.com. The identification of this vulnerability is CVE-2015-0267 since 11/18/2014. Attacking locally is a requirement. A simple authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 83377 (CentOS 7 : kexec-tools (CESA-2015:0986)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155040 (Oracle Enterprise Linux Security Update for kexec-tools (ELSA-2015-0986)).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at Tenable (83377), SecurityFocus (BID 74622†) and Vulnerability Center (SBV-50069†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • kexec-tools up to 2.0.7-18

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
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: Symlink
CWE: CWE-61 / CWE-59
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: 83377
Nessus Name: CentOS 7 : kexec-tools (CESA-2015:0986)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 80056
OpenVAS Name: Oracle Linux Local Check: ELSA-2015-0986
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/18/2014 🔍
02/11/2015 +85 days 🔍
05/12/2015 +90 days 🔍
05/13/2015 +1 days 🔍
05/19/2015 +6 days 🔍
05/19/2015 +0 days 🔍
05/20/2015 +1 days 🔍
12/02/2024 +3484 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: RHSA-2015:0986
Organization: Red Hat
Status: Confirmed

CVE: CVE-2015-0267 (🔍)
GCVE (CVE): GCVE-0-2015-0267
GCVE (VulDB): GCVE-100-75443
SecurityFocus: 74622 - kexec-tools CVE-2015-0267 Insecure Temporary File Creation Vulnerability
Vulnerability Center: 50069 - RedHat kexec-tools Local File System Write Vulnerability, Low

Entryinfo

Created: 05/20/2015 10:15
Updated: 12/02/2024 11:45
Changes: 05/20/2015 10:15 (60), 06/28/2017 06:28 (10), 05/17/2022 23:42 (3), 05/17/2022 23:52 (1), 12/02/2024 11:45 (20)
Complete: 🔍
Cache ID: 216:EFC:103

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

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