PT-2003-1684 · Cisco · Cisco Ios

Reda Zitouni · Published 2003-07-29 · Updated 2017-10-11 · CVE-2003-0512

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Cisco IOS versions 12.2 and earlier

Description: The issue allows remote attackers to identify valid usernames on the system by generating a "% Login invalid" message instead of prompting for a password when an invalid username is provided. This can be used to conduct brute force password guessing attacks.

Recommendations: For Cisco IOS versions 12.2 and earlier, consider restricting access to the login functionality to minimize the risk of exploitation. As a temporary workaround, limit the number of login attempts to prevent brute force attacks. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-310

Related Identifiers

CVE-2003-0512

Affected Products

Cisco Ios

References · 6

• http://cisco.com/warp/public/707/cisco-sn-20030724-ios-enum.shtml · Vendor Advisory
• http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0056.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2003-0512 · Security Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5824 · Note
• http://kb.cert.org/vuls/id/886796 · Note
• http://vigilante.com/inetsecurity/advisories/VIGILANTE-2003002.htm · Note