CVE-2020-26893

CVSS V2 Medium 4.6 CVSS V3 High 7.8

Description

An issue was discovered in ClamXAV 3 before 3.1.1. A malicious actor could use a properly signed copy of ClamXAV 2 (running with an injected malicious dylib) to communicate with ClamXAV 3's helper tool and perform privileged operations. This occurs because of inadequate client verification in the helper tool.

Overview

CVE ID
CVE-2020-26893

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2020-10-16T13:15:11

Last Modified Date
2020-10-21T13:59:20

Weakness Enumerations

CWE	URL
CWE-345	http://cwe.mitre.org/data/definitions/345.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:clamxav:clamxav::::::::	1	OR	3.0.0	3.1.1

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
4.6

Severity
MEDIUM

Exploitability Score
3.9

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.8

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://gist.github.com/matt-clamxav/d341bd48f12a14d2147f8ce860bb36d0	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-26893
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26893

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 16:22:47				Added to TrackCVE
2022-12-05 00:10:48	2020-10-16T13:15Z	2020-10-16T13:15:11	CVE Published Date	updated
2022-12-05 00:10:48		2020-10-21T13:59:20	CVE Modified Date	updated
2022-12-05 00:10:48		Analyzed	Vulnerability Status	updated