CVE-2020-3259
Cisco — Cisco ASA and FTD Information Disclosure Vulnerability
Cisco · CWE-200 — Exposure of sensitive information · in CISA KEV since 2024-02-15
EVRS 83 of 100 Urgent
Patch This Cycle
Rank 532 of 2,960 tracked
Why it scores 83
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and associated with known ransomware campaigns.
- CISA KEVApplied
- RansomwareApplied
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
secure firewall threat defense: update to 6.2.3.16 or later | secure firewall threat defense: update to 6.3.0.6 or later | secure firewall threat defense: update to 6.4.0.9 or later | secure firewall threat defense: update to 6.5.0.5 or later | adaptive security appliance software: update to 9.8.4.20 or later | adaptive security appliance software: update to 9.9.2.67 or later
Affected versions
- secure firewall threat defense
>= 6.2.3 < 6.2.3.16>= 6.3.0 < 6.3.0.6>= 6.4.0 < 6.4.0.9>= 6.5.0 < 6.5.0.5 - adaptive security appliance software
>= 9.8 < 9.8.4.20>= 9.9 < 9.9.2.67>= 9.10 < 9.10.1.40>= 9.12 < 9.12.3.9>= 9.13 < 9.13.1.10
Remediation
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 7.5 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.715 (99.42nd pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Known | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2024-03-07 · KEV since 2024 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | None known | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 7.5 (v3.0), assigned by cisco. | Listed | ENISA EUVD |
Description
NVDA 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.
What CISA says to do