Description
Internet Explorer 5.01 through 6 SP1 allows remote attackers to spoof the domain of a URL via a "%01" character before an @ sign in the user@domain portion of the URL, which hides the rest of the URL, including the real site, in the address bar, aka the "Improper URL Canonicalization Vulnerability."
Metrics
CVSS 2.0 4.3/10
AV:N/AC:M/Au:N/C:N/I:P/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.kb.cert.org/vuls/id/652278Third Party Advisory, US Government Resource
- http://www.securityfocus.com/archive/1/346948Vendor Advisory
- http://www.us-cert.gov/cas/techalerts/TA04-033A.htmlUS Government Resource
- http://www.zapthedingbat.com/security/ex01/vun1.htmExploit, Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-004
- https://exchange.xforce.ibmcloud.com/vulnerabilities/13935
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A490
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A491
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A510
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A511
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A512
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A513
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A526
- http://www.kb.cert.org/vuls/id/652278Third Party Advisory, US Government Resource
- http://www.securityfocus.com/archive/1/346948Vendor Advisory
- http://www.us-cert.gov/cas/techalerts/TA04-033A.htmlUS Government Resource
- http://www.zapthedingbat.com/security/ex01/vun1.htmExploit, Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-004
- https://exchange.xforce.ibmcloud.com/vulnerabilities/13935
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A490
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A491
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A510
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A511
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A512
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A513
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A526
Timeline
- Published
- Jan 20, 2004
- Last modified
- Jun 16, 2026
- NVD status
- Modified