#rce

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** A user needs to be tricked into running malicious files.

**According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?** Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

**According to the CVSS metric, the attack vector is network (AV:N), user interaction is required (UI:R), and privileges required are low (PR:L). What does that mean for this vulnerability?** Exploitation of this vulnerability requires an authorized attacker on the domain to wait for a user to initiate a connection to a malicious server that the attacker has set up prior to the user connecting.

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

### Impact The blog application in XWiki allowed remote code execution for any user who has edit right on any page. Normally, these are all logged-in users as they can edit their own user profile. To exploit, it is sufficient to add an object of type `Blog.BlogPostClass` to any page and to add some script macro with the exploit code to the "Content" field of that object. ### Patches The vulnerability has been patched in the blog application version 9.14 by executing the content of blog posts with the rights of the appropriate author. ### Workarounds We're not aware of any workarounds. ### Resources * https://jira.xwiki.org/browse/BLOG-191 * https://github.com/xwiki-contrib/application-blog/commit/b98ab6f17da3029576f42d12b4442cd555c7e0b4