THREATPORT/VULNERABILITY/CVE-2012-5975
HIGH SEVERITY

CVE-2012-5975

Tectia Server vulnerability

CVSS
9.3
EPSS
35.9%
EPSS pct
98th
Exploited
No known
The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.
Affected vendor
Ssh
Affected product
Tectia Server
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-287 — Improper Authentication
Published
2012-12-04

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 35.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2012-5975

  • Confirm whether Ssh Tectia Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2012-5975.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-5975

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2012-5975 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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