#web

Palo Alto, USA/California, 11th September 2024, CyberNewsWire

Microsoft's September 2024 Patch Tuesday is here. Make sure you’ve applied the necessary patches!

Microsoft Corp. today released updates to fix at least 79 security vulnerabilities in its Windows operating systems and related software, including multiple flaws that are already showing up in active attacks. Microsoft also corrected a critical bug that has caused some Windows 10 PCs to remain dangerously unpatched against actively exploited vulnerabilities for several months this year.

This month's Patch Tuesday contains a total of 79 vulnerabilities — the fourth largest of the year.

In this case study, a 180-year-old life and pension insurer brought its security infrastructure into the modern age.

### Summary Unauthenticated user can access credentials of last authenticated user via OpenID or OAuth2 where the authentication URL did not include `redirect` query string. For example: - Project is configured with OpenID or OAuth2 - Project is configured with cache enabled - User tries to login via SSO link, but without `redirect` query string - After successful login, credentials are cached - If an unauthenticated user tries to login via SSO link, it will return the credentials of the other last user The SSO link is something like `https://directus.example.com/auth/login/openid/callback`, where `openid` is the name of the OpenID provider configured in Directus ### Details This happens because on that endpoint for both OpenId and Oauth2 Directus is using the `respond` middleware, which by default will try to cache GET requests that met some conditions. Although, those conditions do not include this scenario, when an unauthenticated request returns user credentials. For OpenID, thi...

### Impact passing untrusted user input - even after sanitizing it - to `redirect()` may execute untrusted code ### Patches this issue is patched in serve-static 1.16.0 ### Workarounds users are encouraged to upgrade to the patched version of express, but otherwise can workaround this issue by making sure any untrusted inputs are safe, ideally by validating them against an explicit allowlist ### Details successful exploitation of this vector requires the following: 1. The attacker MUST control the input to response.redirect() 1. express MUST NOT redirect before the template appears 1. the browser MUST NOT complete redirection before: 1. the user MUST click on the link in the template

September’s monthly round of patches from Microsoft included 79 vulnerabilities, seven of which are considered critical.

### Impact The REST API exposes the history of any page in XWiki of which the attacker knows the name. The exposed information includes for each modification of the page the time of the modification, the version number, the author of the modification (both username and displayed name) and the version comment. This information is exposed regardless of the rights setup, and even when the wiki is configured to be fully private. On a private wiki, this can be tested by accessing `/xwiki/rest/wikis/xwiki/spaces/Main/pages/WebHome/history`, if this shows the history of the main page then the installation is vulnerable. ### Patches This has been patched in XWiki 15.10.9 and XWiki 16.3.0RC1. ### Workarounds There aren't any known workarounds apart from upgrading to a fixed version. ### References * https://jira.xwiki.org/browse/XWIKI-22052 * https://github.com/xwiki/xwiki-platform/commit/9cbca9808300797c67779bb9a665d85cf9e3d4b8

### Impact body-parser <1.20.3 is vulnerable to denial of service when url encoding is enabled. A malicious actor using a specially crafted payload could flood the server with a large number of requests, resulting in denial of service. ### Patches this issue is patched in 1.20.3 ### References