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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 6.28% probability · 93th percentile
- CISA KEV
- Not listed
- Affected
- microsoft/internet explorer
- Source
- cve@mitre.org
References
- http://support.microsoft.com/support/kb/articles/q168/6/17.aspPatch, Vendor Advisory
- http://www.microsoft.com/Windows/Ie/security/dotless.asp
- http://www.osvdb.org/7828
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-016
- https://exchange.xforce.ibmcloud.com/vulnerabilities/2209
- http://support.microsoft.com/support/kb/articles/q168/6/17.aspPatch, Vendor Advisory
- http://www.microsoft.com/Windows/Ie/security/dotless.asp
- http://www.osvdb.org/7828
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-016
- https://exchange.xforce.ibmcloud.com/vulnerabilities/2209
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.