CVE-2021-33879
Tencent GameLoop HTTP Man-in-the-Middle Code Execution Vulnerability
Description
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.
INFO
Published Date :
June 6, 2021, 8:15 p.m.
Last Modified :
June 15, 2021, 6:27 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2021-33879 has a 6 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-33879.
| URL | Resource |
|---|---|
| https://github.com/mmiszczyk/cve-2021-33879 | Exploit Third Party Advisory |
| https://www.gameloop.com | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
All CVE - PoC in GitHub
poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate
None
None
None
GameLoop update MITM
security exploit cve android-emulator advisory cve-2021-33879
Automatic monitor github cve using Github Actions
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-33879 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33879 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jun. 15, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/mmiszczyk/cve-2021-33879 No Types Assigned https://github.com/mmiszczyk/cve-2021-33879 Exploit, Third Party Advisory Changed Reference Type https://www.gameloop.com No Types Assigned https://www.gameloop.com Vendor Advisory Added CWE NIST CWE-494 Added CPE Configuration OR *cpe:2.3:a:tencent:gameloop:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.21.90
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33879 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-33879
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.23 }} 0.03%
score
0.60184
percentile