CVE-2019-3556
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
HHVM soporta el uso de un servidor "admin" que acepta peticiones administrativas sobre HTTP. Uno de esos manejadores de peticiones, dump-pcre-cache, puede ser usado para dar salida a las expresiones regulares en caché del contexto de ejecución actual en un archivo. El manejador toma un parámetro que especifica en qué parte del sistema de archivos es debido escribir estos datos. El parámetro no es comprobado, permitiendo a un usuario malicioso sobrescribir archivos arbitrarios en los que el usuario que ejecuta HHVM presenta acceso de escritura. Este problema afecta a las versiones de HHVM anteriores a 4.56.2, a todas las versiones entre la 4.57.0 y la 4.78.0, así como a las versiones 4.79.0, 4.80.0, 4.81.0, 4.82.0 y 4.83.0
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-01-02 CVE Reserved
- 2021-10-26 CVE Published
- 2023-08-15 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://www.facebook.com/security/advisories/cve-2019-3556 | Broken Link |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4 | 2021-10-29 |
| URL | Date | SRC |
|---|---|---|
| https://hhvm.com/blog/2020/11/12/security-update.html | 2021-10-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | < 4.56.2 Search vendor "Facebook" for product "Hhvm" and version " < 4.56.2" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | >= 4.57.0 <= 4.78.0 Search vendor "Facebook" for product "Hhvm" and version " >= 4.57.0 <= 4.78.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.79.0 Search vendor "Facebook" for product "Hhvm" and version "4.79.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.80.0 Search vendor "Facebook" for product "Hhvm" and version "4.80.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.81.0 Search vendor "Facebook" for product "Hhvm" and version "4.81.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.82.0 Search vendor "Facebook" for product "Hhvm" and version "4.82.0" | - |
Affected
| ||||||
| Facebook Search vendor "Facebook" | Hhvm Search vendor "Facebook" for product "Hhvm" | 4.83.0 Search vendor "Facebook" for product "Hhvm" and version "4.83.0" | - |
Affected
| ||||||