Vulnerability in Cisco Adaptive Security Appliance
CVSS score
7.5
EPSS probability
%1.7
Risk score
0.1
Published
6 y ago
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Impact on My Inventory
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Vulnerability description
DayBreach CVE AI Research
CVE-2020-3555 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A vulnerability in the SIP inspection process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a watchdog timeout and crash during the cleanup of threads that are associated with a SIP connection that is being deleted from the connection list. An attacker could exploit this vulnerability by sending a high rate of crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a watchdog timeout and crash, resulting in a crash and reload of the affected device.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2020-3555 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | cisco | adaptive security appliance | View |
| 2 | cisco | secure firewall threat defense | View |
| 3 | cisco | secure firewall threat defense | View |
| 4 | cisco | secure firewall threat defense | View |
| 5 | cisco | secure firewall threat defense | View |
| 6 | cisco | secure firewall threat defense | View |
| 7 | cisco | adaptive security appliance software | View |
| 8 | cisco | adaptive security appliance software | View |
| 9 | cisco | adaptive security appliance software | View |
| 10 | cisco | adaptive security appliance software | View |
| 11 | cisco | adaptive security appliance software | View |
| 12 | cisco | adaptive security appliance software | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.8 | CVSS V2 | — | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD |
| 7.5 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD |
| 6.8 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-3555 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-2020-3555 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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