Vulnerability Details : CVE-2021-37843
The resolution SAML SSO apps for Atlassian products allow a remote attacker to login to a user account when only the username is known (i.e., no other authentication is provided). The fixed versions are for Jira: 3.6.6.1, 4.0.12, 5.0.5; for Confluence 3.6.6, 4.0.12, 5.0.5; for Bitbucket 2.5.9, 3.6.6, 4.0.12, 5.0.5; for Bamboo 2.5.9, 3.6.6, 4.0.12, 5.0.5; and for Fisheye 2.5.9.
Products affected by CVE-2021-37843
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:confluence:*:*
- Atlassian » Saml Single Sign On » For BambooVersions from including (>=) 4.0.0 and before (<) 4.0.12cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bamboo:*:*
- Atlassian » Saml Single Sign On » For BitbucketVersions from including (>=) 5.0.0 and before (<) 5.0.5cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bitbucket:*:*
- Atlassian » Saml Single Sign On » For ConfluenceVersions from including (>=) 4.0.0 and before (<) 4.0.12cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:confluence:*:*
- Atlassian » Saml Single Sign On » For BitbucketVersions from including (>=) 3.0.0 and before (<) 3.6.6cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bitbucket:*:*
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:jira:*:*
- Atlassian » Saml Single Sign On » For BambooVersions from including (>=) 5.0.0 and before (<) 5.0.5cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bamboo:*:*
- Atlassian » Saml Single Sign On » For BambooVersions from including (>=) 3.0.0 and before (<) 3.6.6cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bamboo:*:*
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bamboo:*:*
- Atlassian » Saml Single Sign On » For ConfluenceVersions from including (>=) 3.6.0 and before (<) 3.6.6.1cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:confluence:*:*
- Atlassian » Saml Single Sign On » For ConfluenceVersions from including (>=) 5.0.0 and before (<) 5.0.5cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:confluence:*:*
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:fisheye:*:*
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:jira:*:*
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:jira:*:*
- Atlassian » Saml Single Sign On » For BitbucketVersions from including (>=) 4.0.0 and before (<) 4.0.12cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bitbucket:*:*
- cpe:2.3:a:atlassian:saml_single_sign_on:*:*:*:*:*:bitbucket:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-37843
0.91%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37843
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
MITRE | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-37843
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The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-37843
-
https://wiki.resolution.de/doc/saml-sso/5.0.x/all/security-advisories/2021-07-29-authentication-bypass-network-attacker-can-login-to-users-accounts-when-usernames-are-known
2021-07-29 Authentication Bypass: Network Attacker Can Login to Users’ Accounts when Usernames are Known - SAML Single Sign OnThird Party Advisory
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