Описание
malicious SVG attachment causing stored XSS vulnerability
Impact
An attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki.
Patches
Users are strongly advised to upgrade to a patched version.
MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.
Workarounds
It is not advised to work around this, but to upgrade MoinMoin to a patched version.
That said, a work around via a Content Security Policy in the web server might be possible.
Also, it is of course helpful if you give write permissions (which include uploading attachments) only to trusted users.
For more information
If you have any questions or comments about this advisory, email me at twaldmann@thinkmo.de.
Credits
This vulnerability was discovered by:
Catarina Leite from the Checkmarx SCA AppSec team
Ссылки
- https://github.com/moinwiki/moin-1.9/security/advisories/GHSA-4q96-6xhq-ff43
- https://nvd.nist.gov/vuln/detail/CVE-2020-15275
- https://github.com/moinwiki/moin-1.9/commit/31de9139d0aabc171e94032168399b4a0b2a88a2
- https://advisory.checkmarx.net/advisory/CX-2020-4285
- https://github.com/moinwiki/moin-1.9/releases/tag/1.9.11
- https://github.com/pypa/advisory-database/tree/main/vulns/moin/PYSEC-2020-241.yaml
- https://pypi.org/project/moin
Пакеты
moin
< 1.9.11
1.9.11
Связанные уязвимости
MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.
MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.
MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attac ...
Уязвимость файла SVG вики-платформа MoinMoin, связанная с недостатками используемых мер по защите структур веб-страницы, позволяющая нарушителю оказать воздействие на целостность данных
