Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-26081

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
20/07/2021
Last modified:
11/10/2024

Description

REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* 8.5.14 (excluding)
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:* 8.5.14 (excluding)
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* 8.6.0 (including) 8.13.6 (excluding)
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* 8.14.0 (including) 8.16.1 (excluding)
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:* 8.6.0 (including) 8.13.6 (excluding)
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:* 8.14.0 (including) 8.16.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools