55055 : Apache Tomcat Illegal URL Encoded Password Request Username Enumeration
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2009-06-04

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-0580" target="_blank">CVE</a>)</em> : Apache Tomcat 4.1.0 through 4.1.39, 5.5.0 through 5.5.27, and 6.0.0 through 6.0.18, when FORM authentication is used, allows remote attackers to enumerate valid usernames via requests to /j_security_check with malformed URL encoding of passwords, related to improper error checking in the (1) MemoryRealm, (2) DataSourceRealm, and (3) JDBCRealm authentication realms, as demonstrated by a % (percent) value for the j_password parameter.

Classification

Location: Remote / Network Access
Attack Type: Information Disclosure
Impact: Loss of Confidentiality
Solution: Patch / RCS
Exploit: Exploit Public, Exploit Commercial
Disclosure: Vendor Verified
OSVDB: Web Related

Products

Hewlett-Packard Development Company, L.P.	HP-UX	B.11.23
		B.11.31

References

Tools & Filters

	45372 46573
	5044
	d2sec_tomcat_enumuser

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 4.3
Source: nvd.nist.gov | Generated: 2009-06-08 | Disagree?

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