Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Facebook / HHVM | unaffected 4.83.1 before unspecified; affected 4.83.0 before unspecified; unaffected 4.82.1 before unspecified; affected 4.82.0 before unspecified; unaffected 4.81.1 before unspecified; affected 4.81.0 before unspecified; unaffected 4.80.1 before unspecified; affected 4.80.0 before unspecified; unaffected 4.79.1 before unspecified; affected 4.79.0 before unspecified; unaffected 4.78.1 before unspecified; affected 4.57.0 before unspecified; unaffected 4.56.2 before unspecified; affected unspecified before 4.56.2 |
CWE
CWE-22
References
- https://hhvm.com/blog/2020/11/12/security-update.html
- https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4
- https://www.facebook.com/security/advisories/cve-2019-3556
ADP enrichment
No English description supplied.