Vulnerability Monitor

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CVE-2007-2999

Microsoft Windows Server 2003, when time restrictions are in effect for user accounts, generates different error messages for failed login attempts with a valid user name than for those with an invalid user name, which allows context-dependent attackers to determine valid Active Directory account names.

Published

2007-06-04T17:30:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 1.8 (LOW)

CVSSv2 Vector

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

Access Vector: ADJACENT_NETWORK
Access Complexity: HIGH
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.2

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	microsoft	windows_2003_server	gold	Yes
Operating System	microsoft	windows_2003_server	sp1	Yes
Operating System	microsoft	windows_2003_server	sp2	Yes

References

http://osvdb.org/36138 ([email protected])
http://secunia.com/advisories/25457 Vendor Advisory ([email protected])
http://www.notsosecure.com/folder2/2007/05/27/logon-time-restrictions-in-a-domain-in-windows-server-2003-allows-username-enumeration/ ([email protected])
http://www.securityfocus.com/bid/24248 ([email protected])
http://osvdb.org/36138 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/25457 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.notsosecure.com/folder2/2007/05/27/logon-time-restrictions-in-a-domain-in-windows-server-2003-allows-username-enumeration/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/24248 (af854a3a-2127-422b-91ae-364da2661108)