kCTF up to 1.5.x set-src-ip-ranges access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in kCTF up to 1.5.x. Affected by this vulnerability is an unknown functionality of the component set-src-ip-ranges Handler. Such manipulation leads to access control. This vulnerability is referenced as CVE-2022-31055. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in kCTF up to 1.5.x and classified as critical. Affected by this issue is an unknown function of the component set-src-ip-ranges Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

kCTF is a Kubernetes-based infrastructure for capture the flag (CTF) competitions. Prior to version 1.6.0, the kctf cluster set-src-ip-ranges was broken and allowed traffic from any IP. The problem has been patched in v1.6.0. As a workaround, those who want to test challenges privately can mark them as `public: false` and use `kctf chal debug port-forward` to connect.

The weakness was published 06/13/2022 as GHSA-4g2v-6qc6-6jv5. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-31055 since 05/18/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 1.6.0 eliminates this vulnerability. Applying the patch 8cf050be974fcc2fd8aa136701f9a66f2b2a5202 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
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: Access control
CWE: CWE-284 / CWE-266
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: kCTF 1.6.0
Patch: 8cf050be974fcc2fd8aa136701f9a66f2b2a5202

Timelineinfo

05/18/2022 🔍
06/13/2022 +26 days 🔍
06/13/2022 +0 days 🔍
06/13/2022 +0 days 🔍

Sourcesinfo

Advisory: GHSA-4g2v-6qc6-6jv5
Status: Confirmed

CVE: CVE-2022-31055 (🔍)
GCVE (CVE): GCVE-0-2022-31055
GCVE (VulDB): GCVE-100-201740

Entryinfo

Created: 06/13/2022 21:29
Changes: 06/13/2022 21:29 (52)
Complete: 🔍
Cache ID: 216::103

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