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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3789 wordpress security update 4 November 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: wordpress Publisher: Debian Operating System: Debian GNU/Linux UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Increased Privileges -- Remote/Unauthenticated Cross-site Request Forgery -- Remote with User Interaction Denial of Service -- Remote/Unauthenticated Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-28040 CVE-2020-28039 CVE-2020-28038 CVE-2020-28037 CVE-2020-28036 CVE-2020-28035 CVE-2020-28034 CVE-2020-28033 CVE-2020-28032 Original Bulletin: https://lists.debian.org/debian-lts-announce/2020/11/msg00004.html Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running wordpress check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - - ----------------------------------------------------------------------- Debian LTS Advisory DLA-2429-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Utkarsh Gupta November 03, 2020 https://wiki.debian.org/LTS - - ----------------------------------------------------------------------- Package : wordpress Version : 4.7.19+dfsg-1+deb9u1 CVE ID : CVE-2020-28032 CVE-2020-28033 CVE-2020-28034 CVE-2020-28035 CVE-2020-28036 CVE-2020-28037 CVE-2020-28038 CVE-2020-28039 CVE-2020-28040 Debian Bug : 973562 There were several vulnerabilites reported against wordpress, as follows: CVE-2020-28032 WordPress before 4.7.19 mishandles deserialization requests in wp-includes/Requests/Utility/FilteredIterator.php. CVE-2020-28033 WordPress before 4.7.19 mishandles embeds from disabled sites on a multisite network, as demonstrated by allowing a spam embed. CVE-2020-28034 WordPress before 4.7.19 allows XSS associated with global variables. CVE-2020-28035 WordPress before 4.7.19 allows attackers to gain privileges via XML-RPC. CVE-2020-28036 wp-includes/class-wp-xmlrpc-server.php in WordPress before 4.7.19 allows attackers to gain privileges by using XML-RPC to comment on a post. CVE-2020-28037 is_blog_installed in wp-includes/functions.php in WordPress before 4.7.19 improperly determines whether WordPress is already installed, which might allow an attacker to perform a new installation, leading to remote code execution (as well as a denial of service for the old installation). CVE-2020-28038 WordPress before 4.7.19 allows stored XSS via post slugs. CVE-2020-28039 is_protected_meta in wp-includes/meta.php in WordPress before 4.7.19 allows arbitrary file deletion because it does not properly determine whether a meta key is considered protected. CVE-2020-28040 WordPress before 4.7.19 allows CSRF attacks that change a theme's background image. For Debian 9 stretch, these problems have been fixed in version 4.7.19+dfsg-1+deb9u1. We recommend that you upgrade your wordpress packages. For the detailed security status of wordpress please refer to its security tracker page at: https://security-tracker.debian.org/tracker/wordpress 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 - -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEbJ0QSEqa5Mw4X3xxgj6WdgbDS5YFAl+hBH8ACgkQgj6WdgbD S5ZNiRAAhvMgDgEq7AnOBojmHqoVB1xDnJ5jGhPwEUDvuuAHBxD4FM0KU66oEY3c n2kp0Cuhh/V3oeUoH2neohhIi1wbnD0voRTIcWZAqLSVJGCoyjbVH3mCIDj95UiL E7+/FqYhWWqvWtrQkFzKUfvo4GwrYj/aFv4n1njSxjjN8fkm2loxO9yHy/F4nBhx 5OEE/H4xmzBYS8bMKDmtDiJQxblRq4h9oIRKXl2PS/VMuFvSVI92cp9LTSJZeqkN OGqQQt3OVpIYTb6OUs1b/HgOxjieLktBac2OaTkfUweOMQNWwgKudVQix1KQCYE8 FTf9ub/CafVSigaDo93qzNLjsiTfaJuEKtSem7RfQfyrZf8IjyeeVRuXNT3Tivgr /xu2ieJcDOPWBIXYzNg9xTlsSoSHsZuXcym0kxbM4vnQmVOdqgePCaCD+oUanwik Ltt+2r1KOoJHm8DCCRdEbZcATze4gMZqk9WcpOG/vS+PmKP2HDbUrezLxfVjCO5J RV1ql8jDAGJRWNDCTRO2KIkv1LwNfVEtRCeMM9ddin7JTPWxKRFcNeUNuAQqqhw0 r6/m+QeSdqy687S7B8Jln5kWa6K6TOx81nINaZJs5YD2cpKyKIKcodQVocQj0iwb X9Y4usCGqj3ZWFlQoX7nrVwREGYJA8m8snzv83nnFbR4JUJREuY= =aMvT - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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