Vulnerability Name:

CVE-2020-13276 (CCN-183944)

Assigned:2020-06-19
Published:2020-06-19
Updated:2021-07-21
Summary:User is allowed to set an email as a notification email even without verifying the new email in all previous GitLab CE/EE versions through 13.0.1
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
7.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-863
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-13276

Source: XF
Type: UNKNOWN
gitlab-cve202013276-sec-bypass(183944)

Source: CONFIRM
Type: Vendor Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13276.json

Source: CCN
Type: GitLab Web site
Publishing 17 updated advisories and 1 new advisories

Source: MISC
Type: Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/25994

Source: MISC
Type: Permissions Required
https://hackerone.com/reports/471907

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-13276

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version < 12.9.8)
  • OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version < 12.9.8)
  • OR cpe:/a:gitlab:gitlab:*:*:*:*:community:*:*:* (Version >= 12.10.0 and < 12.10.7)
  • OR cpe:/a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* (Version >= 12.10.0 and < 12.10.7)
  • OR cpe:/a:gitlab:gitlab:13.0.0:*:*:*:community:*:*:*
  • OR cpe:/a:gitlab:gitlab:13.0.0:*:*:*:enterprise:*:*:*

  • Configuration CCN 1:
  • cpe:/a:gitlab:gitlab:13.0.1:*:*:*:community:*:*:*
  • OR cpe:/a:gitlab:gitlab:13.0.1:*:*:*:enterprise:*:*:*

  • * Denotes that component is vulnerable
    BACK
    gitlab gitlab *
    gitlab gitlab *
    gitlab gitlab *
    gitlab gitlab *
    gitlab gitlab 13.0.0
    gitlab gitlab 13.0.0
    gitlab gitlab 13.0.1
    gitlab gitlab 13.0.1