CVE-2021-21243 : OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, a Kuber

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, a Kubernetes REST endpoint exposes two methods that deserialize untrusted data from the request body. These endpoints do not enforce any authentication or authorization checks. This issue may lead to pre-auth RCE. This issue was fixed in 4.0.3 by not using deserialization at KubernetesResource side.

Published 2021-01-15 20:15:12

Updated 2021-01-21 14:42:42

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2021-21243

Onedev Project » Onedev
Versions before (<) 4.0.3
cpe:2.3:a:onedev_project:onedev:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-21243

EPSS FAQ

1.11%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 84 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21243

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
10.0	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N	3.9	5.8	GitHub, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: High Integrity: High Availability: None

CWE ids for CVE-2021-21243

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Secondary)
CWE-502 Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-21243

https://github.com/theonedev/onedev/security/advisories/GHSA-9mmq-fm8c-q4fv

Pre-Auth Unsafe Deserialization on KubernetesResource · Advisory · theonedev/onedev · GitHub
Third Party Advisory
https://github.com/theonedev/onedev/commit/9637fc8fa461c5777282a0021c3deb1e7a48f137

Do not deserialize data from job nodes in Kubernetes resource to avoid · theonedev/onedev@9637fc8 · GitHub
Patch;Third Party Advisory

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Vulnerability Details : CVE-2021-21243

Products affected by CVE-2021-21243

Exploit prediction scoring system (EPSS) score for CVE-2021-21243

CVSS scores for CVE-2021-21243

CWE ids for CVE-2021-21243

References for CVE-2021-21243