linkerd up to edge-24.6.1 Service Port 4191 /shutdown server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in linkerd up to edge-24.6.1. This impacts an unknown function of the file /shutdown of the component Service Port 4191. Such manipulation leads to server-side request forgery. This vulnerability is traded as CVE-2024-40632. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in linkerd up to edge-24.6.1 and classified as problematic. Affected by this issue is an unknown function of the file /shutdown of the component Service Port 4191. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is availability. CVE summarizes:

Linkerd is an open source, ultralight, security-first service mesh for Kubernetes. In affected versions when the application being run by linkerd is susceptible to SSRF, an attacker could potentially trigger a denial-of-service (DoS) attack by making requests to localhost:4191/shutdown. Linkerd could introduce an optional environment variable to control a token that must be passed as a header. Linkerd should reject shutdown requests that do not include this header. This issue has been addressed in release version edge-24.6.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-40632 since 07/08/2024. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version edge-24.6.1 eliminates this vulnerability. Applying the patch 35fb2d6d11ef6520ae516dd717790529f85224fa is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (GitHub_M): 🔍

CVSSv2info

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

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: linkerd edge-24.6.1
Patch: 35fb2d6d11ef6520ae516dd717790529f85224fa

Timelineinfo

07/08/2024 🔍
07/16/2024 +8 days 🔍
07/16/2024 +0 days 🔍
07/16/2024 +0 days 🔍

Sourcesinfo

Advisory: GHSA-6v94-gj6x-jqj7
Status: Confirmed

CVE: CVE-2024-40632 (🔍)
GCVE (CVE): GCVE-0-2024-40632
GCVE (VulDB): GCVE-100-271544

Entryinfo

Created: 07/16/2024 07:34
Changes: 07/16/2024 07:34 (67)
Complete: 🔍
Cache ID: 216::103

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