Vulnerability Description
An active network attacker (MiTM) can achieve remote code execution on a machine that runs IKARUS Anti Virus 2.16.7. IKARUS AV for Windows uses cleartext HTTP for updates along with a CRC32 checksum and an update value for verification of the downloaded files. The attacker first forces the client to initiate an update transaction by modifying an update field within an HTTP 200 response, so that it refers to a nonexistent update. The attacker then modifies the HTTP 404 response so that it specifies a successfully found update, with a Trojan horse executable file (e.g., guardxup.exe) and the correct CRC32 checksum for that file.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ikarussecurity | Ikarus Antivirus | 2.16.7 |
Related Weaknesses (CWE)
References
- https://blogs.securiteam.com/index.php/archives/3485ExploitTechnical DescriptionThird Party Advisory
- https://www.ikarussecurity.com/about-ikarus/security-blog/vulnerability-in-windoVendor Advisory
- https://blogs.securiteam.com/index.php/archives/3485ExploitTechnical DescriptionThird Party Advisory
- https://www.ikarussecurity.com/about-ikarus/security-blog/vulnerability-in-windoVendor Advisory
FAQ
What is CVE-2017-15643?
CVE-2017-15643 is a vulnerability with a CVSS score of 7.4 (HIGH). An active network attacker (MiTM) can achieve remote code execution on a machine that runs IKARUS Anti Virus 2.16.7. IKARUS AV for Windows uses cleartext HTTP for updates along with a CRC32 checksum a...
How severe is CVE-2017-15643?
CVE-2017-15643 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-15643?
Check the references section above for vendor advisories and patch information. Affected products include: Ikarussecurity Ikarus Antivirus.