CVE-2021-37843

moderate-risk
Published 2021-08-02

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.

Do I need to act?

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0.91% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Saml Single Sign On
Saml Single Sign On
Saml Single Sign On
Saml Single Sign On
Saml Single Sign On

Affected Vendors

Atlassian

References (2)

Third Party Advisory https://wiki.resolution.de/doc/saml-sso/5.0.x/all/security-advisories/2021-07-29...
Third Party Advisory https://wiki.resolution.de/doc/saml-sso/5.0.x/all/security-advisories/2021-07-29...
47
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 12/34 · Low