CVE-2017-3204

The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://godoc.org/golang.org/x/crypto/ssh	Vendor Advisory
https://github.com/golang/go/issues/19767	Third Party Advisory
https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991	Patch Third Party Advisory
https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/	Third Party Advisory
http://www.securityfocus.com/bid/97481	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:a:golang:crypto:*:*:*:*:*:*:*:*

Information

Published : 2017-04-04 07:59

Updated : 2020-07-07 11:21

NVD link : CVE-2017-3204

Mitre link : CVE-2017-3204

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

golang

crypto

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