CVE - CVE-2021-39180

CVE-ID
CVE-2021-39180	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
OpenOLAT is a web-based learning management system (LMS). A path traversal vulnerability exists in versions prior to 15.3.18, 15.5.3, and 16.0.0. Using a specially prepared ZIP file, it is possible to overwrite any file that is writable by the application server user (e.g. the tomcat user). Depending on the configuration this can be limited to files of the OpenOlat user data directory, however, if not properly set up, the attack could also be used to overwrite application server config files, java code or even operating system files. The attack could be used to corrupt or modify any OpenOlat file such as course structures, config files or temporary test data. Those attack would require in-depth knowledge of the installation and thus more theoretical. If the app server configuration allows the execution of jsp files and the path to the context is known, it is also possible to execute java code. If the app server runs with the same user that is used to deploy the OpenOlat code or has write permissions on the OpenOlat code files and the path to the context is know, code injection is possible. The attack requires an OpenOlat user account to upload a ZIP file and trigger the unzip method. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3 and 16.0.0. There are no known workarounds aside from upgrading.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j URL:https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j MISC:https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e URL:https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e MISC:https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5 URL:https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5 MISC:https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637 URL:https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637 MISC:https://jira.openolat.org/browse/OO-5549 URL:https://jira.openolat.org/browse/OO-5549
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20210816	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210816)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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