CVE-2020-13696
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.
Se detectó un problema en LinuxTV xawtv versiones anteriores 3.107. La función dev_open() en el archivo v4l-conf.c no realiza comprobaciones suficientes para evitar que un llamador sin privilegios del programa de apertura a rutas de sistema de archivos no deseadas. Esto permite a un atacante local con acceso al programa v4l-conf setuid-root probar la existencia de archivos arbitrarios y activar una apertura en archivos arbitrarios con el modo O_RDWR. Para lograr esto, los componentes de ruta relativa necesitan ser agregados a la ruta del dispositivo, como es demostrado por un comando v4l-conf -c /dev/../root/.bash_history
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-05-29 CVE Reserved
- 2020-06-08 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-863: Incorrect Authorization
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2020/06/04/6 | Issue Tracking |
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| https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-13696 | Broken Link | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00018.html | Mailing List |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linuxtv Search vendor "Linuxtv" | Xawtv Search vendor "Linuxtv" for product "Xawtv" | < 3.107 Search vendor "Linuxtv" for product "Xawtv" and version " < 3.107" | - |
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
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| Opensuse Search vendor "Opensuse" | Backports Sle Search vendor "Opensuse" for product "Backports Sle" | 15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0" | sp1 |
Affected
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| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 31 Search vendor "Fedoraproject" for product "Fedora" and version "31" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 32 Search vendor "Fedoraproject" for product "Fedora" and version "32" | - |
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" | esm |
Affected
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