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CVE-2020-3452 CISA KEV · Actively exploited

Improper input validation in Cisco Adaptive Security Appliance Software

CVSS score

7.5

EPSS probability

%100.0

Risk score

15.0

Published

6 y ago

Mitigation available

Apply updates per vendor instructions.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2020-3452 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 web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2020-3452 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1ciscoadaptive security appliance software View
2ciscoadaptive security appliance software View
3ciscoadaptive security appliance software View
4ciscoadaptive security appliance software View
5ciscoadaptive security appliance software View
6ciscoadaptive security appliance software View
7ciscoadaptive security appliance software View
8ciscoasa-5505 View
9ciscoasa 5510 View
10ciscoasa-5512-x View
11ciscoasa-5515-x View
12ciscoasa-5520 View
13ciscoasa 5525-x View
14ciscoasa-5540 View
15ciscoasa-5545-x View
16ciscoasa 5550 View
17ciscoasa-5555-x View
18ciscoasa 5580 View
19ciscoasa-5585-x View
20ciscosecure firewall threat defense View
21ciscosecure firewall threat defense View
22ciscosecure firewall threat defense View
23ciscosecure firewall threat defense View
24ciscosecure firewall threat defense View
25ciscoAdaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) View
Total affected vendors: 1|Products: 25

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
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD
5.0CVSS V2—AV:N/AC:L/Au:N/C:P/I:N/A:NNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Workaround

Resmî yama doğrulanamadı; geçici azaltım veya workaround mevcut.

canonical

Apply updates per vendor instructions.

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

CVE-2020-3452 : the database holds 3 public PoC/exploit sources for it. For direct links to the sources, open the Public Exploits tab.

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-2020-3452 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-2020-3452 weaknesses.

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

CVSS Vector Radar Chart

7.5 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

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

Geçici çözüm

Resmî yama doğrulanamadı; geçici azaltım veya workaround mevcut.

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Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

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