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CVE-2023-20042

Vulnerability in Cisco Secure Firewall Threat Defense

CVSS score

8.6

EPSS probability

%0.7

Risk score

0.1

Published

3 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2023-20042 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 AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2023-20042 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1ciscosecure firewall threat defense View
2ciscosecure firewall threat defense View
3ciscosecure firewall threat defense View
4ciscosecure firewall threat defense View
5ciscosecure firewall threat defense View
6ciscosecure firewall threat defense View
7ciscosecure firewall threat defense View
8ciscosecure firewall threat defense View
9ciscosecure firewall threat defense View
10ciscosecure firewall threat defense View
11ciscosecure firewall threat defense View
12ciscosecure firewall threat defense View
13ciscosecure firewall threat defense View
14ciscosecure firewall threat defense View
15ciscosecure firewall threat defense View
16ciscosecure firewall threat defense View
17ciscosecure firewall threat defense View
18ciscosecure firewall threat defense View
19ciscosecure firewall threat defense View
20ciscosecure firewall threat defense View
21ciscosecure firewall threat defense View
22ciscoadaptive security appliance software View
23ciscoadaptive security appliance software View
24ciscoadaptive security appliance software View
25ciscoadaptive security appliance software View
26ciscoadaptive security appliance software View
27ciscoadaptive security appliance software View
28ciscoadaptive security appliance software View
29ciscoadaptive security appliance software View
30ciscoadaptive security appliance software View
31ciscoadaptive security appliance software View
32ciscoadaptive security appliance software View
33ciscoadaptive security appliance software View
34ciscoadaptive security appliance software View
35ciscoadaptive security appliance software View
36ciscoadaptive security appliance software View
37ciscoadaptive security appliance software View
38ciscoadaptive security appliance software View
39ciscoadaptive security appliance software View
40ciscoadaptive security appliance software View
41ciscoadaptive security appliance software View
42ciscoadaptive security appliance software View
43ciscoadaptive security appliance software View
44ciscoadaptive security appliance software View
45ciscoadaptive security appliance software View
46ciscoadaptive security appliance software View
47ciscoadaptive security appliance software View
48ciscoadaptive security appliance software View
49ciscoadaptive security appliance software View
50ciscoadaptive security appliance software View
51ciscoadaptive security appliance software View
Total affected vendors: 1|Products: 51

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

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.

SCOREVERSIONSEVERITYVECTORSOURCE
8.6CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HNVD
6.8CVSS V31MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

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-2023-20042 is associated with the following CWEs:

CWE-404: Common Weakness Enumeration Entry CWE-404

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-2023-20042 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ssl-dos-kxG8mpUAvendor-advisory

CVSS Vector Radar Chart

8.6 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

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Weakness Type (CWE & CAPEC)

CWE-404

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CVE-2023-20042 · Vulnerability in Cisco Secure Firewall…