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Vulnerability Details : CVE-2003-0512

Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a password when an invalid username is provided, which allows remote attackers to identify valid usernames on the system and conduct brute force password guessing, as reported for the Aironet Bridge.
Publish Date : 2003-08-27 Last Update Date : 2017-10-11
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 310

- Related OVAL Definitions

Title Definition Id Class Family
Cisco IOS User Enumeration via Error Messages oval:org.mitre.oval:def:5824 ios
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2003-0512

# Product Type Vendor Product Version Update Edition Language
1 OS Cisco IOS 12.0\(24\)s1 * * * Version Details Vulnerabilities
2 OS Cisco IOS 12.0\(24.2\)s * * * Version Details Vulnerabilities
3 OS Cisco IOS 12.2\(16\)b * * * Version Details Vulnerabilities
4 OS Cisco IOS 12.2\(15\)zn * * * Version Details Vulnerabilities
5 OS Cisco IOS 12.2\(11\)ja1 * * * Version Details Vulnerabilities
6 OS Cisco IOS 12.2\(16.1\)b * * * Version Details Vulnerabilities
7 OS Cisco IOS 12.2\(15.1\)s * * * Version Details Vulnerabilities
8 OS Cisco IOS 12.2\(14.5\) * * * Version Details Vulnerabilities
9 OS Cisco IOS 12.2\(14.5\)t * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Cisco IOS 9

- References For CVE-2003-0512
CERT-VN VU#886796
VULNWATCH 20030728 Cisco Aironet AP1100 Valid Account Disclosure Vulnerability
CISCO 20030724 Enumerating Locally Defined Users in Cisco IOS
OVAL oval:org.mitre.oval:def:5824

- Metasploit Modules Related To CVE-2003-0512

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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