CVE-2021-33879
HIGH 8.1EPSS 1.2%
Tencent GameLoop before 4.1.21.90 downloaded updates over an insecure HTTP connection. A malicious attacker in an MITM position could spoof the contents of an XML document describing an update package, replacing a download URL with one pointing to an arbitrary Windows executable. Because the only integrity check would be a comparison of the downloaded file's MD5 checksum to the one contained within the XML document, the downloaded executable would then be executed on the victim's machine.
- CVSS v3.1 NVD
- 8.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 1.20% chance of exploitation in the next 30 days, 68th percentile
- Published
- 2021-06-06
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
- mmiszczyk/cve-2021-338790★ · 2021-06-06