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A66/100

Vulnerability · high

Attackers exploit SSHole authentication bypass in OpenSSH

Tier A · Patch today – Before you go home

Who’s exposed: Systems running the affected OpenSSH versions

Tier A because: Core infrastructure or popular tool AND exploited in the wild

Reach

Attack

Damage

Fix

Core infrastructure · Popular tool · Exploited in the wild

The Brief

  • Attackers are exploiting an authentication bypass in OpenSSH called 'SSHole'.
  • Initial exploitation attempts are attributed to botnets and crypto miners.
  • Other threat actors are expected to follow suit.

Why it matters

An authentication bypass in OpenSSH, which is actively being exploited, puts servers that run the vulnerable version at risk of unauthorized access.

The checklist behind the tier

Checklist · 4 of 10 yes
YesHits tech teamsOpenSSH is server software that developers and ops teams run everywhere.
YesCore infrastructureOpenSSH is core infrastructure nearly every team depends on for remote access.
YesPopular toolOpenSSH is a mainstream, widely deployed tool, so it qualifies.
YesExploited in the wildSecurityWeek: hackers are exploiting the SSHole bypass; attempts attributed to botnets and crypto miners.
NoPublic exploitSecurityWeek does not say exploit code or a PoC is published.
NoRemote, no loginSecurityWeek does not state the attack works remotely without credentials.
NoFull takeoverSecurityWeek does not state the bypass leads to code execution or admin rights.
NoSecrets exposedSecurityWeek reports no stolen credentials, keys, configs or data.
NoSupply chainSecurityWeek describes exploitation of a bypass, not compromised packages or updates.
NoNo fix yetSecurityWeek does not say whether a patched OpenSSH version is available.

Source

Hackers Exploiting ‘SSHole’ Authentication Bypass in OpenSSH ↗ SecurityWeek · 2h ago

First seen · 1 source · Full story page · How tiers are decided