Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-1999-1087

Internet Explorer 4 treats a 32-bit number ("dotless IP address") in the a URL as the hostname instead of an IP address, which causes IE to apply Local Intranet Zone settings to the resulting web page, allowing remote malicious web servers to conduct unauthorized activities by using URLs that contain the dotless IP address for their server.

Published

1999-12-31T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	microsoft	internet_explorer	4.0	Yes
Application	microsoft	internet_explorer	4.0.1	Yes
Application	microsoft	internet_explorer	4.0.1	Yes

References

http://support.microsoft.com/support/kb/articles/q168/6/17.asp Patch, Vendor Advisory ([email protected])
http://www.microsoft.com/Windows/Ie/security/dotless.asp ([email protected])
http://www.osvdb.org/7828 ([email protected])
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-016 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/2209 ([email protected])
http://support.microsoft.com/support/kb/articles/q168/6/17.asp Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.microsoft.com/Windows/Ie/security/dotless.asp (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/7828 (af854a3a-2127-422b-91ae-364da2661108)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-016 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/2209 (af854a3a-2127-422b-91ae-364da2661108)