CVE-2020-3259
Exposure of Sensitive Information — is CVE-2020-3259real, exploitable, or a false positive? Here's the community ground truth.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to retrieve memory contents on an affected device, which could lead to the disclosure of confidential information. The vulnerability is due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. An attacker could exploit this vulnerability by sending a crafted GET request to the web services interface. A successful exploit could allow the attacker to retrieve memory contents, which could lead to the disclosure of confidential information. Note: This vulnerability affects only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.
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Practitioners rate this higher than its CVSS — treat with extra caution.
Field notes & remediation
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- 0
Confirmed exploited in the wild — listed in the CISA KEV catalog (added 2024-02-15). Linked to known ransomware campaigns. Treat as real and prioritize patching over triage.
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