CVE-2020-5281 : In Perun before version 3.9.1, VO or group manager can modify configuration of t

In Perun before version 3.9.1, VO or group manager can modify configuration of the LDAP extSource to retrieve all from Perun LDAP. Issue is fixed in version 3.9.1 by sanitisation of the input.

Published 2020-03-25 18:15:14

Updated 2020-03-30 18:33:06

Source GitHub, Inc.

View at NVD, CVE.org

Products affected by CVE-2020-5281

Cesnet » Perun
Versions before (<) 3.9.1
cpe:2.3:a:cesnet:perun:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-5281

EPSS FAQ

0.36%

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

~ 55 %

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

CVSS scores for CVE-2020-5281

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
6.2	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:N	1.0	4.7	GitHub, Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: High User Interaction: Required Scope: Changed Confidentiality: High Integrity: Low Availability: None

CWE ids for CVE-2020-5281

CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

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

Assigned by: security-advisories@github.com (Secondary)
CWE-732 Incorrect Permission Assignment for Critical Resource

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-5281

https://github.com/CESNET/perun/security/advisories/GHSA-gj88-9q3f-72m3

LDAP connector injection · Advisory · CESNET/perun · GitHub
Third Party Advisory
https://github.com/CESNET/perun/pull/2635

Fix vulnerability in communication with LDAP connector by stavamichal · Pull Request #2635 · CESNET/perun · GitHub
Patch;Third Party Advisory
https://github.com/CESNET/perun/commit/ac527bc3225a64208ee5cee59e5918ee360ca039

Merge pull request #2635 from stavamichal/fixVulnerablityInLDAPBasedE… · CESNET/perun@ac527bc · GitHub
Patch;Third Party Advisory

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Vulnerability Details : CVE-2020-5281

Products affected by CVE-2020-5281

Exploit prediction scoring system (EPSS) score for CVE-2020-5281

CVSS scores for CVE-2020-5281

CWE ids for CVE-2020-5281

References for CVE-2020-5281