CVE-2019-18677
squid: Cross-Site Request Forgery issue in HTTP Request processing
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.
Se descubrió un problema en Squid versiones 2.x, 3.x y versiones 4.x hasta 4.8 cuando la configuración append_domain es usada (porque los caracteres añadidos no interactúan apropiadamente con las restricciones de longitud del nombre de host). Debido a un procesamiento incorrecto del mensaje, puede redireccionar inapropiadamente el tráfico a los orígenes a los que no debe ser enviado.
Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled certain URN requests. A remote attacker could possibly use this issue to bypass access checks and access restricted servers. This issue was only addressed in Ubuntu 19.04 and Ubuntu 19.10. Jeriko One discovered that Squid incorrectly handed URN responses. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-11-04 CVE Reserved
- 2019-11-26 CVE Published
- 2024-08-05 CVE Updated
- 2025-04-02 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CWE-352: Cross-Site Request Forgery (CSRF)
CAPEC
References (13)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/squid-cache/squid/pull/427 | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | >= 2.0 <= 2.7 Search vendor "Squid-cache" for product "Squid" and version " >= 2.0 <= 2.7" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | >= 3.0 <= 3.5.28 Search vendor "Squid-cache" for product "Squid" and version " >= 3.0 <= 3.5.28" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | >= 4.0 <= 4.8 Search vendor "Squid-cache" for product "Squid" and version " >= 4.0 <= 4.8" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable2 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable3 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable4 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable5 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable6 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable7 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable8 |
Affected
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| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 2.7 Search vendor "Squid-cache" for product "Squid" and version "2.7" | stable9 |
Affected
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| 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
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| 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
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 30 Search vendor "Fedoraproject" for product "Fedora" and version "30" | - |
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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