CVE-2020-3433
A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system.
EPSS 4.46% · 89.3th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| cisco | anyconnect_secure_mobility_client | 0 |
| Cisco | Cisco AnyConnect Secure Mobility Client | n/a |
Exploit Intelligence
- PoCs and technical analysis of three vulnerabilities found on Cisco AnyConnect for Windows: CVE-2020-3433, CVE-2020-3434 and CVE-2020-3435 (github-poc)
- PoCs and technical analysis of three vulnerabilities found on Cisco AnyConnect for Windows: CVE-2020-3433, CVE-2020-3434 and CVE-2020-3435 (github-poc)
- PoCs and technical analysis of three vulnerabilities found on Cisco AnyConnect for Windows: CVE-2020-3433, CVE-2020-3434 and CVE-2020-3435 (github-poc)
- PoCs and technical analysis of three vulnerabilities found on Cisco AnyConnect for Windows: CVE-2020-3433, CVE-2020-3434 and CVE-2020-3435 (github-poc)
- PoCs and technical analysis of three vulnerabilities found on Cisco AnyConnect for Windows: CVE-2020-3433, CVE-2020-3434 and CVE-2020-3435 (github-poc)
- PoCs and technical analysis of three vulnerabilities found on Cisco AnyConnect for Windows: CVE-2020-3433, CVE-2020-3434 and CVE-2020-3435 (github-poc)
- http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html (nist-nvd)
- CIRCL seen: CVE-2020-3433 (circl-sighting)
- CIRCL seen: CVE-2020-3433 (circl-sighting)
- CIRCL exploited: CVE-2020-3433 (circl-sighting)
…and 20 more exploits
Timeline
- Aug 5, 2020 CVE Published
- Sep 29, 2020 PoC Published
- Oct 1, 2020 PoC Published
- Apr 14, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Sep 16, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Oct 24, 2022 CISA KEV Added
- Jan 8, 2023 EPSS Score
References
- 20200805 Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability vendor-advisory
- http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html url
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3433 url
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-3bLk6vA advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dna-info-disc-3bz8BCgR advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr-dos-zJLJFgBf advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-3433 advisory