capsule-proxy up to 0.4.5 TokenReview improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in capsule-proxy up to 0.4.5. It has been rated as critical. Affected is the function TokenReview. The manipulation leads to improper authentication. This vulnerability is listed as CVE-2023-48312. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in capsule-proxy up to 0.4.5 (Firewall Software). It has been rated as critical. This issue affects the function TokenReview. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

capsule-proxy is a reverse proxy for the capsule operator project. Affected versions are subject to a privilege escalation vulnerability which is based on a missing check if the user is authenticated based on the `TokenReview` result. All the clusters running with the `anonymous-auth` Kubernetes API Server setting disable (set to `false`) are affected since it would be possible to bypass the token review mechanism, interacting with the upper Kubernetes API Server. This privilege escalation cannot be exploited if you're relying only on client certificates (SSL/TLS). This vulnerability has been addressed in version 0.4.6. Users are advised to upgrade.

The weakness was presented 11/24/2023. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-48312 since 11/14/2023. Technical details are known, but no exploit is available.

Upgrading to version 0.4.6 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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: capsule-proxy 0.4.6
Patch: github.com

Timelineinfo

11/14/2023 🔍
11/24/2023 +10 days 🔍
11/24/2023 +0 days 🔍
12/16/2023 +22 days 🔍

Sourcesinfo

Advisory: 472404f7006a4152e4eec76dee07324dd1e6e823
Status: Confirmed

CVE: CVE-2023-48312 (🔍)
GCVE (CVE): GCVE-0-2023-48312
GCVE (VulDB): GCVE-100-246113

Entryinfo

Created: 11/24/2023 19:18
Updated: 12/16/2023 14:38
Changes: 11/24/2023 19:18 (50), 12/16/2023 14:33 (2), 12/16/2023 14:38 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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