CVE-2014-2653
openssh: failure to check DNS SSHFP records in certain scenarios
Severity Score
5.8
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.
La función verify_host_key en sshconnect.c en el cliente en OpenSSH 6.6 y anteriores permite a servidores remotos provocar la evasión de la comprobación SSHFP DNS RR mediante la presentación de HostCertificate no aceptable.
It was discovered that OpenSSH clients did not correctly verify DNS SSHFP records. A malicious server could use this flaw to force a connecting client to skip the DNS SSHFP record check and require the user to perform manual host verification of the DNS SSHFP record.
*Credits:
N/A
CVSS Scores
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
- 2014-03-26 CVE Reserved
- 2014-03-27 CVE Published
- 2024-03-25 EPSS Updated
- 2024-08-06 CVE Updated
- 2024-08-06 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-20: Improper Input Validation
- CWE-287: Improper Authentication
CAPEC
References (18)
| URL | Tag | Source |
|---|---|---|
| http://advisories.mageia.org/MGASA-2014-0166.html | X_refsource_confirm | |
| http://aix.software.ibm.com/aix/efixes/security/openssh_advisory4.asc | X_refsource_confirm | |
| http://openwall.com/lists/oss-security/2014/03/26/7 | Mailing List | |
| http://secunia.com/advisories/59855 | Third Party Advisory | |
| http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html | X_refsource_confirm |
|
| http://www.securityfocus.com/bid/66459 | Vdb Entry |
| URL | Date | SRC |
|---|---|---|
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742513 | 2024-08-06 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | <= 6.6 Search vendor "Openbsd" for product "Openssh" and version " <= 6.6" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 6.0 Search vendor "Openbsd" for product "Openssh" and version "6.0" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 6.1 Search vendor "Openbsd" for product "Openssh" and version "6.1" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 6.2 Search vendor "Openbsd" for product "Openssh" and version "6.2" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 6.3 Search vendor "Openbsd" for product "Openssh" and version "6.3" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 6.4 Search vendor "Openbsd" for product "Openssh" and version "6.4" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 6.5 Search vendor "Openbsd" for product "Openssh" and version "6.5" | - |
Affected
| ||||||