CVE-2020-26029

CVSS V2 Medium 4 CVSS V3 Medium 6.5

Description

An issue was discovered in Zammad before 3.4.1. There are wrong authorization checks for impersonation requests via X-On-Behalf-Of. The authorization checks are performed for the actual user and not the one given in the X-On-Behalf-Of header.

Overview

CVE ID
CVE-2020-26029

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2020-12-28T08:15:11

Last Modified Date
2020-12-29T14:40:32

Weakness Enumerations

CWE	URL
CWE-863	http://cwe.mitre.org/data/definitions/863.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:zammad:zammad::::::::	1	OR	1.0.0	3.4.1

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
SINGLE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
4

Severity
MEDIUM

Exploitability Score
8

Impact Score
2.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
6.5

Base Severity
MEDIUM

Exploitability Score
2.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://zammad.com/news/security-advisory-zaa-2020-20	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-26029
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26029

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:29:14				Added to TrackCVE
2022-12-05 18:53:35	2020-12-28T08:15Z	2020-12-28T08:15:11	CVE Published Date	updated
2022-12-05 18:53:35		2020-12-29T14:40:32	CVE Modified Date	updated
2022-12-05 18:53:35		Analyzed	Vulnerability Status	updated