Information Disclosure in OpenBSD Openssh (CVE-2008-5161)
Summary
Vulnerability in OpenBSD Openssh (CVE-2008-5161). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown vectors.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2008-5161 has been found in OpenBSD Openssh.
Risk of unauthorized operations or information disclosure. CVSS score: 3.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "OpenBSD Openssh CVE-2008-5161" on the vendor's site.
CVE-2008-5161 (OpenBSD Openssh) — CWE-200 / CVSS v3 3.7
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Information disclosure (CWE-200) exists in OpenBSD Openssh.
Check the vendor advisory for the affected versions of OpenBSD Openssh.
Severity: Low (CVSS 3.7/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Openssh' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'Openssh' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
Opensshを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2008-5161 openssh Fixed in: 1:5.1p1-5
References
- patch ssh.com
- web isc.sans.org
- web kb.juniper.net
- web lists.apple.com
- web marc.info
- web openssh.org
- web osvdb.org
- web osvdb.org
- web osvdb.org
- web rhn.redhat.com
- web secunia.com
- web secunia.com
- web secunia.com
- web secunia.com
- web secunia.com
- web secunia.com
- web secunia.com
- web sunsolve.sun.com
- web support.apple.com
- web support.attachmate.com
- web support.avaya.com
- web cpni.gov.uk
- web kb.cert.org
- web rtpro.yamaha.co.jp
- web securityfocus.com
- web securityfocus.com
- web securityfocus.com
- web securitytracker.com
- web securitytracker.com
- web securitytracker.com
- web vupen.com
- web vupen.com
- web vupen.com
- web vupen.com
- web vupen.com
- web exchange.xforce.ibmcloud.com
- web h20566.www2.hpe.com
- web kc.mcafee.com
- web kc.mcafee.com
- web oval.cisecurity.org
- web nvd.nist.gov
- web ssh.com
- web github.com