Vulnerability CVE-2019-11547

Vulnerability Name:

CVE-2019-11547 (CCN-166741)

Assigned:

2019-04-29

Published:

2019-04-29

Updated:

2021-07-21

Summary:

An issue was discovered in GitLab Community and Enterprise Edition before 11.8.9, 11.9.x before 11.9.10, and 11.10.x before 11.10.2. It has Improper Encoding or Escaping of Output. The branch name on new merge request notification emails isn't escaped, which could potentially lead to XSS issues.

CVSS v3 Severity:

6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:H/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): None

Vulnerability Type:

CWE-79

Vulnerability Consequences:

Cross-Site Scripting

References:

Source: MITRE
Type: CNA
CVE-2019-11547

Source: CCN
Type: GitLab Web site
GitLab Security Release: 11.10.2, 11.9.10, and 11.8.9

Source: CONFIRM
Type: Release Notes, Vendor Advisory
https://about.gitlab.com/2019/04/29/security-release-gitlab-11-dot-10-dot-2-released/

Source: XF
Type: UNKNOWN
gitlab-cve201911547-xss(166741)

Source: CONFIRM
Type: Exploit, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-ee/issues/11515

Vulnerable Configuration:

Configuration 1:

cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 6.0.0 and < 11.8.9)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 6.0.0 and < 11.8.9)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 11.9.0 and < 11.9.10)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 11.9.0 and < 11.9.10)

OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 11.10.0 and < 11.10.2)

OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 11.10.0 and < 11.10.2)

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:2019115470000000	V	CVE-2019-11547 on Ubuntu 16.04 LTS (xenial) - medium.	2019-09-09
oval:com.ubuntu.xenial:def:201911547000	V	CVE-2019-11547 on Ubuntu 16.04 LTS (xenial) - medium.	2019-05-01

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