Vulnerability in Go Ssh Library
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.
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.005 (64.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Go Ssh Library — versions prior to commit e4e2799
- Golang Crypto
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cret@cert.org (x_refsource_MISC, Vendor Advisory)
- cret@cert.org (x_refsource_CONFIRM, Third Party Advisory)
- cret@cert.org (Third Party Advisory, x_refsource_MISC)
- cret@cert.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- cret@cert.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2017-3204?
- CVE-2017-3204 is a high-severity vulnerability in Go Ssh Library, classified under Cryptographic Issues. CVSS score: 8.1/10. Published 2017-04-04.
- How severe is CVE-2017-3204?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2017-3204 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.