CVE-2019-16782
Possible Information Leak / Session Hijack Vulnerability in Rack
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison.
Se presenta una posible vulnerabilidad de fuga de información y secuestro de sesión en Rack (rack RubyGem). Esta vulnerabilidad está parchada en las versiones 1.6.12 y 2.0.8. Los atacantes pueden ser capaces de encontrar y secuestrar sesiones utilizando ataques de sincronización dirigidos al id de sesión. Los id de sesión comúnmente son almacenados e indexados a una base de datos que utiliza algún tipo de esquema para acelerar las búsquedas de ese identificador de sesión. Al medir cuidadosamente la cantidad de tiempo que toma buscar una sesión, un atacante puede encontrar un id de sesión válida y secuestrar la sesión. El id de sesión en sí puede ser generado aleatoriamente, pero la forma en que es indexada la sesión por parte del almacén de respaldo no utiliza una comparación segura.
A flaw was found in rubygem-rack in versions prior to 1.6.12 and 2.0.8. An information leak may allow an attacker to find and hijack sessions using timing attacks targeting the session ID. The highest threat from the vulnerability is to data confidentiality.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-09-24 CVE Reserved
- 2019-12-18 CVE Published
- 2024-04-12 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-203: Observable Discrepancy
- CWE-208: Observable Timing Discrepancy
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2019/12/18/2 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2019/12/18/3 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2019/12/19/3 | Mailing List |
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| http://www.openwall.com/lists/oss-security/2020/04/09/2 | Mailing List |
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| https://github.com/rack/rack/security/advisories/GHSA-hrqr-hxpp-chr3 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2020/04/08/1 | 2023-11-07 | |
| https://github.com/rack/rack/commit/7fecaee81f59926b6e1913511c90650e76673b38 | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Rack Project Search vendor "Rack Project" | Rack Search vendor "Rack Project" for product "Rack" | < 1.6.12 Search vendor "Rack Project" for product "Rack" and version " < 1.6.12" | ruby |
Affected
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| Rack Project Search vendor "Rack Project" | Rack Search vendor "Rack Project" for product "Rack" | >= 2.0.0 < 2.0.8 Search vendor "Rack Project" for product "Rack" and version " >= 2.0.0 < 2.0.8" | ruby |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 31 Search vendor "Fedoraproject" for product "Fedora" and version "31" | - |
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
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