Buildkite Elastic CI for AWS up to 5.22.4/6.7.0 PIPELINE_PATH symlink

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

A vulnerability classified as critical has been found in Buildkite Elastic CI for AWS up to 5.22.4/6.7.0. Affected is an unknown function. The manipulation of the argument PIPELINE_PATH with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A symbolic link following vulnerability in Buildkite Elastic CI for AWS versions prior to 6.7.1 and 5.22.5 allows the buildkite-agent user to change ownership of arbitrary directories via the PIPELINE_PATH variable in the fix-buildkite-agent-builds-permissions script.

The weakness was published 12/22/2023 as ATREDIS-2023-0003. The advisory is available at github.com. This vulnerability is traded as CVE-2023-43116 since 09/18/2023. Technical details are known, but there is no available exploit.

Upgrading to version 5.22.5 or 6.7.1 eliminates this vulnerability.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Elastic CI for AWS 5.22.5/6.7.1

Timelineinfo

09/18/2023 🔍
12/22/2023 +95 days 🔍
12/22/2023 +0 days 🔍
01/18/2024 +27 days 🔍

Sourcesinfo

Advisory: ATREDIS-2023-0003
Status: Confirmed

CVE: CVE-2023-43116 (🔍)

Entryinfo

Created: 12/22/2023 11:31 AM
Updated: 01/18/2024 08:58 AM
Changes: 12/22/2023 11:31 AM (41), 01/18/2024 08:58 AM (11)
Complete: 🔍
Cache ID: 18:0C9:40

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