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CVE

CVE-2001-0572

The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can all

The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can allow a remote attacker to obtain the following information via sniffing: (1) password lengths or ranges of lengths, which simplifies brute force password guessing, (2) whether RSA or DSA authentication is being used, (3) the number of authorized_keys in RSA authentication, or (4) the lengths of shell commands.

HIGH · CVSS 7.5 EPSS 0.24511
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
▤

Affected Products & Versions

2
openbsd opensshall versions
sshall versions
⚠

Public Exploits & PoCs

1
pocarchives.neohapsis.com · 0225.htmlarchives.neohapsis.com
◈

Detection Rules (IDS/IPS)

4
snort-communityINDICATOR-SHELLCODE ssh CRC32 overflow /bin/shshellcode-detect
snort-communityINDICATOR-SHELLCODE ssh CRC32 overflow fillershellcode-detect
snort-communityINDICATOR-SHELLCODE ssh CRC32 overflow NOOPshellcode-detect
snort-communityINDICATOR-SHELLCODE ssh CRC32 overflowshellcode-detect
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSuspicious OpenSSH Daemon Error
productmediumOpenSSH Server Listening On Socket
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD22 Aug 2001 · 04:00 AM
⚑

Vendor Advisories

1
rhsaRHSA-2001:033
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000391Vendor Advisory
http://www.kb.cert.org/vuls/id/596827US Government Resource
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-033.php3PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2001-033.htmlPatchVendor Advisory
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