CVE-2019-3556
HHVM Admin Server File Write Arbitrary
Description
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.
INFO
Published Date :
Oct. 26, 2021, 8:15 p.m.
Last Modified :
Oct. 29, 2021, 4:38 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-3556.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-3556 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-3556 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 29, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Changed Reference Type https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4 No Types Assigned https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4 Patch, Third Party Advisory Changed Reference Type https://hhvm.com/blog/2020/11/12/security-update.html No Types Assigned https://hhvm.com/blog/2020/11/12/security-update.html Vendor Advisory Changed Reference Type https://www.facebook.com/security/advisories/cve-2019-3556 No Types Assigned https://www.facebook.com/security/advisories/cve-2019-3556 Broken Link Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* versions up to (excluding) 4.56.2 *cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* versions from (including) 4.57.0 up to (including) 4.78.0 *cpe:2.3:a:facebook:hhvm:4.79.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.80.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.81.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.82.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:hhvm:4.83.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-3556 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-3556
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.01%
score
0.50349
percentile