ESB-2019.1065 - [Debian] wordpress: Multiple vulnerabilities 2019-04-01

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1065
                     Debian wordpress vulnerabilities
                               1 April 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           wordpress
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Cross-site Scripting            -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-9787 CVE-2019-8942 

Reference:         ESB-2019.0653

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html

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Package        : wordpress
Version        : 4.1.26+dfsg-1+deb8u1
CVE ID         : CVE-2019-8942 CVE-2019-9787
Debian Bug     : 924546


Simon Scannell of Ripstech Technologies discovered multiple
vulnerabilities in wordpress, a web blogging manager.

CVE-2019-8942

    remote code execution in wordpress because an _wp_attached_file Post
    Meta entry can be changed to an arbitrary string, such as one ending
    with a .jpg?file.php substring. An attacker with author privileges
    can execute arbitrary code by uploading a crafted image containing
    PHP code in the Exif metadata.

CVE-2019-9787

    wordpress does not properly filter comment content, leading to
    Remote Code Execution by unauthenticated users in a default
    configuration. This occurs because CSRF protection is mishandled,
    and because Search Engine Optimization of A elements is performed
    incorrectly, leading to XSS. The XSS results in administrative
    access.

For Debian 8 "Jessie", these problems have been fixed in version
4.1.26+dfsg-1+deb8u1.

We recommend that you upgrade your wordpress packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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