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5.1	$0-$5k	0.00

A vulnerability was found in keepalived up to 0.2.3. It has been rated as problematic. Affected by this issue is the function pidfile_write. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is integrity, and availability. CVE summarizes:

The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1) keepalived.pid, (2) checkers.pid, and (3) vrrp.pid files in /var/run/, which allows local users to kill arbitrary processes by writing a PID to one of these files.

The weakness was disclosed 05/20/2011 as Bug 704039 as not defined bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2011-1784 since 04/19/2011. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 61776 (Fedora 16 : keepalived-1.2.3-2.fc16 (2012-12367)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (67477) and Tenable (61776).

Productinfo

Name

• keepalived

Version

• 0.2.0
• 0.2.1
• 0.2.2
• 0.2.3

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.1
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 61776
Nessus Name: Fedora 16 : keepalived-1.2.3-2.fc16 (2012-12367)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 864694
OpenVAS Name: Fedora Update for keepalived FEDORA-2012-12367
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2011 🔍
05/10/2011 +21 days 🔍
05/16/2011 +6 days 🔍
05/16/2011 +0 days 🔍
05/20/2011 +4 days 🔍
05/20/2011 +0 days 🔍
09/05/2012 +474 days 🔍
09/16/2012 +11 days 🔍
03/23/2015 +918 days 🔍
11/07/2021 +2421 days 🔍

Sourcesinfo

Advisory: Bug 704039
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1784 (🔍)
X-Force: 67477
Vulnerability Center: 36133 - Keepalived 1.2.2 and Earlier Allows to Kill Arbitrary Processes, Low
SecurityFocus: 47859 - keepalived Insecure PID Files Insecure File Permissions Vulnerability
Secunia: 44460 - keepalived Insecure PID Files Security Issue, Not Critical
OSVDB: 72380

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/07/2021 15:02
Changes: 03/23/2015 16:50 (62), 04/17/2017 10:52 (12), 11/07/2021 15:02 (3)
Complete: 🔍

Discussion

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