CVE-2008-5161
Vulnérabilité faible
Description
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.
Gravité et risque d'exploitation
CVE-2008-5161 obtient un score CVSS de 3.7/10, soit une gravité faible. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 18.55 %, ce qui la place devant 97.2 % des CVE référencées.
Que faire ?
- Vérifiez si le produit concerné est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- http://openssh.org/txt/cbc.adv
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-247186-1
- http://www.securityfocus.com/bid/32319
- http://secunia.com/advisories/33121
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05157667
- http://osvdb.org/49872
- http://secunia.com/advisories/33308
- http://rhn.redhat.com/errata/RHSA-2009-1287.html
- http://www.cpni.gov.uk/Docs/Vulnerability_Advisory_SSH.txt
- http://www.securitytracker.com/id?1021382
- https://kc.mcafee.com/corporate/index?page=content&id=SB10163
- http://osvdb.org/50036
- http://secunia.com/advisories/32833
- http://secunia.com/advisories/36558
- http://osvdb.org/50035
- http://www.ssh.com/company/news/article/953/
- http://www.securitytracker.com/id?1021235
- http://secunia.com/advisories/34857
- http://support.avaya.com/elmodocs2/security/ASA-2008-503.htm
- http://support.attachmate.com/techdocs/2398.html
- http://www.rtpro.yamaha.co.jp/RT/FAQ/Security/CPNI957037.html
- http://www.vupen.com/english/advisories/2008/3173
- http://www.securityfocus.com/archive/1/498579/100/0/threaded
- https://exchange.xforce.ibmcloud.com/vulnerabilities/46620
- http://secunia.com/advisories/32740
- http://www.vupen.com/english/advisories/2009/1135
- http://secunia.com/advisories/32760
- http://www.vupen.com/english/advisories/2009/3184
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://www.securitytracker.com/id?1021236
- https://kc.mcafee.com/corporate/index?page=content&id=SB10106
- http://marc.info/?l=bugtraq&m=125017764422557&w=2
- http://isc.sans.org/diary.html?storyid=5366
- http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
- http://marc.info/?l=bugtraq&m=125017764422557&w=2
- http://www.vupen.com/english/advisories/2008/3409
- http://www.vupen.com/english/advisories/2008/3172
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11279
- http://www.securityfocus.com/archive/1/498558/100/0/threaded
- http://support.apple.com/kb/HT3937
- http://www.kb.cert.org/vuls/id/958563