CVE-2015-3455
squid: incorrect X509 server certificate validation (SQUID-2015:1)
Severity Score
5.9
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.
Squid 3.2.x en versiones anteriores a 3.2.14, 3.3.x en versiones anteriores a 3.3.14, 3.4.x en versiones anteriores a 3.4.13 y 3.5.x en versiones anteriores a 3.5.4, cuando el primer cliente está configurado mediante SSL-bump, no valida adecuadamente el dominio o campos de nombre de host de certificados X.509, lo que permite a atacantes man-in-the-middle suplantar servidores SSL a través de un certificado válido.
It was found that Squid configured with client-first SSL-bump did not correctly validate X.509 server certificate host name fields. A man-in-the-middle attacker could use this flaw to spoof a Squid server using a specially crafted X.509 certificate.
Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. It was found that Squid configured with client-first SSL-bump did not correctly validate X.509 server certificate host name fields. A man-in-the-middle attacker could use this flaw to spoof a Squid server using a specially crafted X.509 certificate. This update fixes the following bugs: Previously, the squid process did not handle file descriptors correctly when receiving Simple Network Management Protocol requests. As a consequence, the process gradually accumulated open file descriptors. This bug has been fixed and squid now handles SNMP requests correctly, closing file descriptors when necessary.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
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
- 2015-04-29 CVE Reserved
- 2015-05-06 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
- CWE-297: Improper Validation of Certificate with Host Mismatch
CAPEC
References (13)
| URL | Tag | Source |
|---|---|---|
| http://advisories.mageia.org/MGASA-2015-0191.html | Third Party Advisory | |
| http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html | Third Party Advisory |
|
| http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html | Third Party Advisory |
|
| http://www.securityfocus.com/bid/74438 | Vdb Entry | |
| http://www.securitytracker.com/id/1032221 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Oracle Search vendor "Oracle" | Linux Search vendor "Oracle" for product "Linux" | 7 Search vendor "Oracle" for product "Linux" and version "7" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Solaris Search vendor "Oracle" for product "Solaris" | 11.2 Search vendor "Oracle" for product "Solaris" and version "11.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.1 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.2 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.3 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.4 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.4" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.5 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.5" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.6 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.6" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.7 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.7" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.8 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.8" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.9 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.9" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.10 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.10" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.11 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.11" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.12 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.12" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.13 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.13" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.14 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.14" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.15 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.15" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.16 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.16" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.17 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.17" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.18 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.18" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.0.19 Search vendor "Squid-cache" for product "Squid" and version "3.2.0.19" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.1 Search vendor "Squid-cache" for product "Squid" and version "3.2.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.2 Search vendor "Squid-cache" for product "Squid" and version "3.2.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.3 Search vendor "Squid-cache" for product "Squid" and version "3.2.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.4 Search vendor "Squid-cache" for product "Squid" and version "3.2.4" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.5 Search vendor "Squid-cache" for product "Squid" and version "3.2.5" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.6 Search vendor "Squid-cache" for product "Squid" and version "3.2.6" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.7 Search vendor "Squid-cache" for product "Squid" and version "3.2.7" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.8 Search vendor "Squid-cache" for product "Squid" and version "3.2.8" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.9 Search vendor "Squid-cache" for product "Squid" and version "3.2.9" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.10 Search vendor "Squid-cache" for product "Squid" and version "3.2.10" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.11 Search vendor "Squid-cache" for product "Squid" and version "3.2.11" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.12 Search vendor "Squid-cache" for product "Squid" and version "3.2.12" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.2.13 Search vendor "Squid-cache" for product "Squid" and version "3.2.13" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.0 Search vendor "Squid-cache" for product "Squid" and version "3.3.0" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.0.1 Search vendor "Squid-cache" for product "Squid" and version "3.3.0.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.0.2 Search vendor "Squid-cache" for product "Squid" and version "3.3.0.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.0.3 Search vendor "Squid-cache" for product "Squid" and version "3.3.0.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.1 Search vendor "Squid-cache" for product "Squid" and version "3.3.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.2 Search vendor "Squid-cache" for product "Squid" and version "3.3.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.3 Search vendor "Squid-cache" for product "Squid" and version "3.3.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.4 Search vendor "Squid-cache" for product "Squid" and version "3.3.4" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.5 Search vendor "Squid-cache" for product "Squid" and version "3.3.5" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.6 Search vendor "Squid-cache" for product "Squid" and version "3.3.6" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.7 Search vendor "Squid-cache" for product "Squid" and version "3.3.7" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.8 Search vendor "Squid-cache" for product "Squid" and version "3.3.8" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.9 Search vendor "Squid-cache" for product "Squid" and version "3.3.9" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.10 Search vendor "Squid-cache" for product "Squid" and version "3.3.10" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.11 Search vendor "Squid-cache" for product "Squid" and version "3.3.11" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.12 Search vendor "Squid-cache" for product "Squid" and version "3.3.12" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.3.13 Search vendor "Squid-cache" for product "Squid" and version "3.3.13" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.0.1 Search vendor "Squid-cache" for product "Squid" and version "3.4.0.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.0.2 Search vendor "Squid-cache" for product "Squid" and version "3.4.0.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.0.3 Search vendor "Squid-cache" for product "Squid" and version "3.4.0.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.1 Search vendor "Squid-cache" for product "Squid" and version "3.4.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.2 Search vendor "Squid-cache" for product "Squid" and version "3.4.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.3 Search vendor "Squid-cache" for product "Squid" and version "3.4.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.4 Search vendor "Squid-cache" for product "Squid" and version "3.4.4" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.5 Search vendor "Squid-cache" for product "Squid" and version "3.4.5" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.6 Search vendor "Squid-cache" for product "Squid" and version "3.4.6" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.7 Search vendor "Squid-cache" for product "Squid" and version "3.4.7" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.8 Search vendor "Squid-cache" for product "Squid" and version "3.4.8" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.9 Search vendor "Squid-cache" for product "Squid" and version "3.4.9" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.10 Search vendor "Squid-cache" for product "Squid" and version "3.4.10" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.11 Search vendor "Squid-cache" for product "Squid" and version "3.4.11" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.4.12 Search vendor "Squid-cache" for product "Squid" and version "3.4.12" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.5.0.1 Search vendor "Squid-cache" for product "Squid" and version "3.5.0.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.5.0.2 Search vendor "Squid-cache" for product "Squid" and version "3.5.0.2" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.5.0.3 Search vendor "Squid-cache" for product "Squid" and version "3.5.0.3" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.5.0.4 Search vendor "Squid-cache" for product "Squid" and version "3.5.0.4" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.5.1 Search vendor "Squid-cache" for product "Squid" and version "3.5.1" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | 3.5.2 Search vendor "Squid-cache" for product "Squid" and version "3.5.2" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 22 Search vendor "Fedoraproject" for product "Fedora" and version "22" | - |
Affected
| ||||||