CVE-2019-7743
First published: Tue Feb 12 2019(Updated: )
An issue was discovered in Joomla! before 3.9.3. The phar:// stream wrapper can be used for object injection attacks because there is no protection mechanism (such as the TYPO3 PHAR stream wrapper) to prevent use of the phar:// handler for non .phar-files.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/joomla/joomla-cms | >=2.5.0<3.9.3 | 3.9.3 |
| Joomla | >=2.5.0<=3.9.2 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2019-7743
- https://developer.joomla.org/security-centre/770-20190206-core-implement-the-typo3-phar-stream-wrapper
- https://github.com/joomla/joomla-cms/issues/23907
- https://web.archive.org/web/20210730211655/https://www.securityfocus.com/bid/107050
- https://github.com/advisories/GHSA-5m3w-rvvh-8fx6 (Advisory)
- http://www.securityfocus.com/bid/107050
Frequently Asked Questions
What is the severity of CVE-2019-7743?
CVE-2019-7743 is classified as a high-severity vulnerability due to its potential for object injection attacks.
How do I fix CVE-2019-7743?
To fix CVE-2019-7743, upgrade Joomla! to version 3.9.3 or later.
What software versions are affected by CVE-2019-7743?
CVE-2019-7743 affects Joomla! versions prior to 3.9.3, including all versions from 2.5.0 to 3.9.2.
What type of attack does CVE-2019-7743 enable?
CVE-2019-7743 enables object injection attacks via the phar:// stream wrapper.
Is there a known exploit for CVE-2019-7743?
While specific exploits for CVE-2019-7743 have not been publicly disclosed, the vulnerability's nature poses a high risk for exploitation.
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