CVE-2003-0190
First published: Fri May 02 2003(Updated: )
OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenSSH | =3.4p1 | |
| OpenSSH | =3.6.1p1 | |
| OpenSSH | <3.6.1 | |
| OpenSSH | =3.6.1-p1 | |
| openpkg openpkg | =1.2 | |
| openpkg openpkg | =1.3 | |
| All of | ||
| Siemens Scalance X204RNA ECC | <3.2.7 | |
| Siemens Scalance X204RNA ECC Firmware | ||
| All of | ||
| Siemens Scalance X204RNA EEC Firmware | <3.2.7 | |
| Siemens Scalance X204RNA EEC |
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Reference Links
- http://www.securityfocus.com/bid/7467
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html
- http://lab.mediaservice.net/advisory/2003-01-openssh.txt
- http://www.redhat.com/support/errata/RHSA-2003-222.html
- http://www.redhat.com/support/errata/RHSA-2003-224.html
- http://www.turbolinux.com/security/TLSA-2003-31.txt
- http://marc.info/?l=bugtraq&m=105172058404810&w=2
- http://marc.info/?l=bugtraq&m=106018677302607&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Frequently Asked Questions
What is the severity of CVE-2003-0190?
CVE-2003-0190 is classified as a medium-severity vulnerability due to the potential for remote attackers to enumerate valid usernames.
How do I fix CVE-2003-0190?
To mitigate CVE-2003-0190, upgrade to OpenSSH version 3.6.2 or later where this timing attack issue has been addressed.
What does CVE-2003-0190 affect?
CVE-2003-0190 affects OpenSSH versions up to and including 3.6.1p1, particularly when PAM support is enabled.
Who is vulnerable to CVE-2003-0190?
Organizations using vulnerable versions of OpenSSH with PAM enabled are susceptible to the enumeration of valid usernames.
What attack vector does CVE-2003-0190 utilize?
CVE-2003-0190 utilizes a timing attack to determine the existence of valid usernames on the affected OpenSSH versions.
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- agent/weakness
- agent/remedy
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-historical
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/openbsd
- canonical/openssh
- version/openssh/3.4p1
- version/openssh/3.6.1p1
- version/openssh/3.6.1-p1
- vendor/openpkg
- canonical/openpkg openpkg
- version/openpkg openpkg/1.2
- version/openpkg openpkg/1.3
- vendor/siemens
- canonical/siemens scalance x204rna ecc
- canonical/siemens scalance x204rna ecc firmware
- canonical/siemens scalance x204rna eec firmware
- canonical/siemens scalance x204rna eec