CVE-2021-22557 : SLO generator allows for loading of YAML files that if crafted in a specific for

SLO generator allows for loading of YAML files that if crafted in a specific format can allow for code execution within the context of the SLO Generator. We recommend upgrading SLO Generator past https://github.com/google/slo-generator/pull/173

Published 2021-10-04 10:15:07

Updated 2022-10-25 16:18:37

Source Google Inc.

View at NVD, CVE.org

Products affected by CVE-2021-22557

Google » Slo Generator
Versions before (<) 2.0.1
cpe:2.3:a:google:slo_generator:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-22557

EPSS FAQ

0.54%

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

~ 65 %

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

CVSS scores for CVE-2021-22557

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
5.3	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L	1.8	3.4	Google Inc.
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: Low
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-22557

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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

Assigned by: nvd@nist.gov (Primary)
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Assigned by: cve-coordination@google.com (Secondary)

References for CVE-2021-22557

http://packetstormsecurity.com/files/164426/Google-SLO-Generator-2.0.0-Code-Execution.html

Google SLO-Generator 2.0.0 Code Execution ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://github.com/google/slo-generator/pull/173

fix: yaml loader security issue by ocervell · Pull Request #173 · google/slo-generator · GitHub
Exploit;Patch;Third Party Advisory

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Vulnerability Details : CVE-2021-22557

Products affected by CVE-2021-22557

Exploit prediction scoring system (EPSS) score for CVE-2021-22557

CVSS scores for CVE-2021-22557

CWE ids for CVE-2021-22557

References for CVE-2021-22557