keepalived 2.0.8 /tmp/keepalived.data PrintData/PrintStats link following

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in keepalived 2.0.8. Affected by this issue is the function PrintData/PrintStats of the file /tmp/keepalived.data. This manipulation causes link following. The identification of this vulnerability is CVE-2018-19044. The attack can only be executed locally. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in keepalived 2.0.8 and classified as problematic. Affected by this vulnerability is the function PrintData/PrintStats of the file /tmp/keepalived.data. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect integrity, and availability. The summary by CVE is:

keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd.

The bug was discovered 11/09/2018. The weakness was shared 11/08/2018 (Website). The advisory is shared at bugzilla.suse.com. This vulnerability is known as CVE-2018-19044 since 11/06/2018. An attack has to be approached locally. The successful exploitation needs a single authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 119854 (openSUSE Security Update : keepalived (openSUSE-2018-1575)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (119854). The entries VDB-126591, VDB-126590 and VDB-126593 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: 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: 119854
Nessus Name: openSUSE Security Update : keepalived (openSUSE-2018-1575)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: github.com

Timelineinfo

11/06/2018 🔍
11/08/2018 +2 days 🔍
11/08/2018 +0 days 🔍
11/09/2018 +1 days 🔍
11/09/2018 +0 days 🔍
12/21/2018 +42 days 🔍
12/24/2018 +3 days 🔍
06/05/2023 +1624 days 🔍

Sourcesinfo

Advisory: RHSA-2019:2285
Status: Not defined

CVE: CVE-2018-19044 (🔍)
GCVE (CVE): GCVE-0-2018-19044
GCVE (VulDB): GCVE-100-126589
See also: 🔍

Entryinfo

Created: 11/09/2018 07:43
Updated: 06/05/2023 09:59
Changes: 11/09/2018 07:43 (68), 04/11/2020 09:17 (3), 06/05/2023 09:59 (5)
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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