#auth

Jenkins provides APIs for fine-grained control of item creation: - Authorization strategies can prohibit the creation of items of a given type in a given item group (`ACL#hasCreatePermission2`). - Item types can prohibit creation of new instances in a given item group (`TopLevelItemDescriptor#isApplicableIn(ItemGroup)`). If an attempt is made to create an item of a prohibited type through the Jenkins CLI or the REST API and either of the above checks fail, Jenkins 2.478 and earlier, LTS 2.462.2 and earlier creates the item in memory, only deleting it from disk. This allows attackers with Item/Create permission to bypass these restrictions, creating a temporary item. With Item/Configure permission, they can also save the item to persist it. If an attempt is made to create an item of a prohibited type through the Jenkins CLI or the REST API and either of the above checks fail, Jenkins 2.479, LTS 2.462.3 does not retain the item in memory.

Jenkins OpenId Connect Authentication Plugin 4.354.v321ce67a_1de8 and earlier does not check the `iss` (Issuer) claim of an ID Token during its authentication flow, a value that identifies the Originating Party (IdP). This vulnerability may allow attackers to subvert the authentication flow, potentially gaining administrator access to Jenkins. OpenId Connect Authentication Plugin 4.355.v3a_fb_fca_b_96d4 checks the `iss` (Issuer) claim of an ID Token during its authentication flow when the Issuer is known.

Jenkins OpenId Connect Authentication Plugin 4.354.v321ce67a_1de8 and earlier does not check the `aud` (Audience) claim of an ID Token during its authentication flow, a value to verify the token is issued for the correct client. This vulnerability may allow attackers to subvert the authentication flow, potentially gaining administrator access to Jenkins. OpenId Connect Authentication Plugin 4.355.v3a_fb_fca_b_96d4 checks the `aud` (Audience) claim of an ID Token during its authentication flow.

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Ubuntu Security Notice 7050-1 - Benoit Côté-Jodoin and Michael Nipper discovered that Devise-Two-Factor incorrectly handled one-time password validation. An attacker could possibly use this issue to intercept and re-use a one-time password. Garrett Rappaport discovered that Devise-Two-Factor incorrectly handled generating multi-factor authentication codes. An attacker could possibly use this issue to generate valid multi-factor authentication codes.

Microsoft Office 2019 MSO build 1808 (16.0.10411.20011) and Microsoft 365 MSO version 2403 build 16.0.17425.20176 suffer from an NTLMv2 hash disclosure vulnerability.

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