CWE
200
Advisory Published
Updated

CVE-2007-4991: Infoleak

First published: Fri Sep 21 2007(Updated: )

The SOCKS4 Proxy in Microsoft Internet Security and Acceleration (ISA) Server 2004 SP1 and SP2 allows remote attackers to obtain potentially sensitive information (the destination IP address of another user's session) via an empty packet.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Microsoft Internet Security and Acceleration Server=2004-sp1
Microsoft Internet Security and Acceleration Server=2004-sp2

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2007-4991?

    CVE-2007-4991 is considered to have a medium severity level due to information disclosure vulnerabilities.

  • How do I fix CVE-2007-4991?

    To fix CVE-2007-4991, you should apply the latest security updates from Microsoft for ISA Server 2004 SP1 and SP2.

  • What software is affected by CVE-2007-4991?

    CVE-2007-4991 affects Microsoft ISA Server 2004 Service Pack 1 and Service Pack 2.

  • What type of attack does CVE-2007-4991 enable?

    CVE-2007-4991 enables remote attackers to obtain potentially sensitive information, specifically the destination IP address of another user's session.

  • Is there a workaround for CVE-2007-4991?

    Currently, there are no known workarounds for CVE-2007-4991 other than applying the recommended updates.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203