Authentication flaw

2021-08-0219:15:00

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9.5 High

AI Score

Confidence

High

0.01 Low

EPSS

Percentile

83.5%

JSON

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.

CPENameOperatorVersion
saml_single_sign_onlt2.5.9
saml_single_sign_onge5.0.0
saml_single_sign_onlt5.0.5
saml_single_sign_onge4.0.0
saml_single_sign_onlt4.0.12
saml_single_sign_onge3.0.0
saml_single_sign_onlt3.6.6
saml_single_sign_onlt2.5.9
saml_single_sign_onge5.0.0
saml_single_sign_onlt5.0.5

Name	Operator	Version
saml_single_sign_on	lt	2.5.9
saml_single_sign_on	ge	5.0.0
saml_single_sign_on	lt	5.0.5
saml_single_sign_on	ge	4.0.0
saml_single_sign_on	lt	4.0.12
saml_single_sign_on	ge	3.0.0
saml_single_sign_on	lt	3.6.6
saml_single_sign_on	lt	2.5.9
saml_single_sign_on	ge	5.0.0
saml_single_sign_on	lt	5.0.5

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References

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