CVE-2018-10545
php: Dumpable FPM child processes allow bypassing opcache access controls
Severity Score
4.7
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue was discovered in PHP before 5.6.35, 7.0.x before 7.0.29, 7.1.x before 7.1.16, and 7.2.x before 7.2.4. Dumpable FPM child processes allow bypassing opcache access controls because fpm_unix.c makes a PR_SET_DUMPABLE prctl call, allowing one user (in a multiuser environment) to obtain sensitive information from the process memory of a second user's PHP applications by running gcore on the PID of the PHP-FPM worker process.
Se ha descubierto un problema en PHP en versiones anteriores a la 05/06/1935, versiones 7.0.x anteriores a la 7.0.29, versiones 7.1.x anteriores a la 07/01/2016 y versiones 7.2.x anteriores a la 7.2.4. Los procesos hijo FPM volcables permiten la omisión de los controles de acceso de opcache debido a que fpm_unix.c realiza una llamada prctl PR_SET_DUMPABLE, que permite que un usuario (en un entorno multiusuario) obtenga información sensible de la memoria del proceso de las aplicaciones PHP de un segundo usuario ejecutando gcore en el PID del proceso trabajador PHP-FPM.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2018-04-29 CVE Reserved
- 2018-04-29 CVE Published
- 2023-04-23 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-287: Improper Authentication
CAPEC
References (15)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/104022 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/05/msg00004.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20180607-0003 | Third Party Advisory |
|
| https://www.tenable.com/security/tns-2018-12 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://php.net/ChangeLog-5.php | 2019-08-19 | |
| http://php.net/ChangeLog-7.php | 2019-08-19 | |
| https://bugs.php.net/bug.php?id=75605 | 2019-08-19 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:2519 | 2019-08-19 | |
| https://security.gentoo.org/glsa/201812-01 | 2019-08-19 | |
| https://usn.ubuntu.com/3646-1 | 2019-08-19 | |
| https://usn.ubuntu.com/3646-2 | 2019-08-19 | |
| https://www.debian.org/security/2018/dsa-4240 | 2019-08-19 | |
| https://access.redhat.com/security/cve/CVE-2018-10545 | 2019-08-19 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1563858 | 2019-08-19 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | < 5.6.35 Search vendor "Php" for product "Php" and version " < 5.6.35" | - |
Affected
| ||||||
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | >= 7.0.0 < 7.0.29 Search vendor "Php" for product "Php" and version " >= 7.0.0 < 7.0.29" | - |
Affected
| ||||||
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | >= 7.1.0 < 7.1.16 Search vendor "Php" for product "Php" and version " >= 7.1.0 < 7.1.16" | - |
Affected
| ||||||
| Php Search vendor "Php" | Php Search vendor "Php" for product "Php" | >= 7.2.0 < 7.2.4 Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.4" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 17.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Storage Automation Store Search vendor "Netapp" for product "Storage Automation Store" | - | - |
Affected
| ||||||