Vulnerability Report

CVE-2021-21371

RCE

Title: Arbitrary Command Execution in Tenable for Jira Cloud

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2021-21371.

CWE Category CWE-502
Published Date Mar 10, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.0 CVSS v3.1
Exploit Probability (EPSS)
0.08%

Vulnerability Summary

CVE-2021-21371: Tenable for Jira Cloud is an open source project designed to pull Tenable.io vulnerability data, then generate Jira Tasks and sub-tasks based on the vulnerabilities' current state. It published in pypi as "tenable-jira-cloud". In tenable-jira-cloud before version 1.1.21, it is possible to run arbitrary commands through the yaml.load() method. This could allow an attacker with local access to the host to run arbitrary code by running the application with a specially crafted YAML configuration file. This is fixed in version 1.1.21 by using yaml.safe_load() instead of yaml.load().

Impacted Vendors

T
tenable 1

Reference Links

https://github.com/tenable/integration-jira-cloud/commit/f8c2095fd529e664e7fa25403a0a4a85bb3907d0 https://github.com/tenable/integration-jira-cloud/security/advisories/GHSA-8278-88vv-x98r https://pypi.org/project/tenable-jira-cloud/ https://pyyaml.docsforge.com/master/documentation/#loading-yaml https://github.com/tenable/integration-jira-cloud/commit/f8c2095fd529e664e7fa25403a0a4a85bb3907d0 https://github.com/tenable/integration-jira-cloud/security/advisories/GHSA-8278-88vv-x98r https://pypi.org/project/tenable-jira-cloud/ https://pyyaml.docsforge.com/master/documentation/#loading-yaml
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.0
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.6
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-21371 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.