HHVM supports the use of an "admin" server which accepts administrative requests over HTTP. One of those request handlers, dump-pcre-cache, can be used to output cached regular expressions from the current execution context into a file. The handler takes a parameter which specifies where on the filesystem to write this data. The parameter is not validated, allowing a malicious user to overwrite arbitrary files where the user running HHVM has write access. This issue affects HHVM versions prior to 4.56.2, all versions between 4.57.0 and 4.78.0, as well as 4.79.0, 4.80.0, 4.81.0, 4.82.0, and 4.83.0.
References
| Link | Resource |
|---|---|
| https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4 | Patch Third Party Advisory |
| https://hhvm.com/blog/2020/11/12/security-update.html | Vendor Advisory |
| https://www.facebook.com/security/advisories/cve-2019-3556 | Broken Link |
| https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4 | Patch Third Party Advisory |
| https://hhvm.com/blog/2020/11/12/security-update.html | Vendor Advisory |
| https://www.facebook.com/security/advisories/cve-2019-3556 | Broken Link |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 04:42
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4 - Patch, Third Party Advisory | |
| References | () https://hhvm.com/blog/2020/11/12/security-update.html - Vendor Advisory | |
| References | () https://www.facebook.com/security/advisories/cve-2019-3556 - Broken Link |
Information
Published : 2021-10-26 20:15
Updated : 2024-11-21 04:42
NVD link : CVE-2019-3556
Mitre link : CVE-2019-3556
CVE.ORG link : CVE-2019-3556
JSON object : View
Products Affected
- hhvm
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')