CVE-2015-5600
Scores
EPSS
Percentile: 73.6%
CVSS
CVSS Score: 4.3/10
All CVSS Scores
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Medium
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
Partial
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
None (N)
Measures the impact to the availability of the impacted component
Description
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.
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Sources
CWEs
Related Vulnerabilities
Vulnerable Software (7)
Type: Configuration
Product: openssh
Operating System: debian
{ "fixed": "1:6.9p1-1"}
Source: debian
Type: Configuration
Product: openssh
Operating System: debian wheezy 7
{ "unfixed": true}
Source: debian
Type: Configuration
Product: openssh
Operating System: rhel 6
{ "fixed": "5.3p1-114.el6_7"}
Source: redhat
Type: Configuration
Product: openssh
Operating System: rhel 7
{ "fixed": "6.6.1p1-22.el7"}
Source: redhat
Type: Configuration
Product: openssh
Operating System: ubuntu trusty 14.04
{ "fixed": "1:6.6p1-2ubuntu2.2"}
Source: ubuntu
Type: Configuration
Product: openssh
Operating System: ubuntu vivid 15.04
{ "fixed": "1:6.7p1-5ubuntu1.2"}
Source: ubuntu
Type: Configuration
Vendor: *
Product: openssh
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*", "versionEndIncluding": "6.9", "vulnerable": true } ], "operator": "OR"}
Source: nvd