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[email protected]CVE-2021-37843

HistoryAug 02, 2021 - 7:15 p.m.

CVE-2021-37843

2021-08-0219:15:08

CWE-306

[email protected]

web.nvd.nist.gov

cve-2021-37843

atlassian

saml sso

remote login

security vulnerability

fix version

nvd

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.4 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

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.

Affected configurations

NVD

Node

atlassiansaml_single_sign_onRange<2.5.9bamboo

atlassiansaml_single_sign_onRange<2.5.9bitbucket

atlassiansaml_single_sign_onRange<2.5.9fisheye

atlassiansaml_single_sign_onRange<3.5.6confluence

atlassiansaml_single_sign_onRange<3.6.6.1jira

atlassiansaml_single_sign_onRange3.0.0–3.6.6bamboo

atlassiansaml_single_sign_onRange3.0.0–3.6.6bitbucket

atlassiansaml_single_sign_onRange3.6.0–3.6.6.1confluence

atlassiansaml_single_sign_onRange4.0.0–4.0.12bamboo

atlassiansaml_single_sign_onRange4.0.0–4.0.12bitbucket

atlassiansaml_single_sign_onRange4.0.0–4.0.12confluence

atlassiansaml_single_sign_onRange4.0.0–4.0.12jira

atlassiansaml_single_sign_onRange5.0.0–5.0.5bamboo

atlassiansaml_single_sign_onRange5.0.0–5.0.5bitbucket

atlassiansaml_single_sign_onRange5.0.0–5.0.5confluence

atlassiansaml_single_sign_onRange5.0.0–5.0.5jira

CPENameOperatorVersion
atlassian:saml_single_sign_onatlassian saml single sign onlt2.5.9
atlassian:saml_single_sign_onatlassian saml single sign onlt3.5.6
atlassian:saml_single_sign_onatlassian saml single sign onlt3.6.6.1
atlassian:saml_single_sign_onatlassian saml single sign onlt3.6.6
atlassian:saml_single_sign_onatlassian saml single sign onlt4.0.12
atlassian:saml_single_sign_onatlassian saml single sign onlt5.0.5

CPE	Name	Operator	Version
atlassian:saml_single_sign_on	atlassian saml single sign on	lt	2.5.9
atlassian:saml_single_sign_on	atlassian saml single sign on	lt	3.5.6
atlassian:saml_single_sign_on	atlassian saml single sign on	lt	3.6.6.1
atlassian:saml_single_sign_on	atlassian saml single sign on	lt	3.6.6
atlassian:saml_single_sign_on	atlassian saml single sign on	lt	4.0.12
atlassian:saml_single_sign_on	atlassian saml single sign on	lt	5.0.5

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

Social References

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.4 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.01 Low

EPSS

Percentile

83.5%

JSON

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