CVE-2022-20736 Vulnerability Analysis & Exploit Details

CVE-2022-20736
Vulnerability Scoring

5.3
/10
Significant Risk

Security assessments indicate that CVE-2022-20736 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2022-20736 Details

Status: Modified

Last updated: 🕡 21 Nov 2024, 06:43 UTC
Originally published on: 🕕 15 Jun 2022, 18:15 UTC

Time between publication and last update: 889 days

CVSS Release: version 3

CVSS3 Source

ykramarz@cisco.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVE-2022-20736 Vulnerability Summary

CVE-2022-20736: A vulnerability in the web-based management interface of Cisco AppDynamics Controller Software could allow an unauthenticated, remote attacker to access a configuration file and the login page for an administrative console that they would not normally have authorization to access. This vulnerability is due to improper authorization checking for HTTP requests that are submitted to the affected web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected instance of AppDynamics Controller. A successful exploit could allow the attacker to access the login page for an administrative console. AppDynamics has released software updates that address this vulnerability.

Assessing the Risk of CVE-2022-20736

Access Complexity Graph

The exploitability of CVE-2022-20736 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2022-20736

With low attack complexity and no required privileges, CVE-2022-20736 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2022-20736, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2022-20736, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2022-20736 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2022-20736 poses no threat to data integrity.
  • Availability: None
    CVE-2022-20736 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.065% (probability of exploit)

EPSS Percentile: 31.49% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 68.51% of others.

CVE-2022-20736 References

External References

CWE Common Weakness Enumeration

CWE-862

CAPEC Common Attack Pattern Enumeration and Classification

  • Exploitation of Thunderbolt Protection Flaws CAPEC-665 An adversary leverages a firmware weakness within the Thunderbolt protocol, on a computing device to manipulate Thunderbolt controller firmware in order to exploit vulnerabilities in the implementation of authorization and verification schemes within Thunderbolt protection mechanisms. Upon gaining physical access to a target device, the adversary conducts high-level firmware manipulation of the victim Thunderbolt controller SPI (Serial Peripheral Interface) flash, through the use of a SPI Programing device and an external Thunderbolt device, typically as the target device is booting up. If successful, this allows the adversary to modify memory, subvert authentication mechanisms, spoof identities and content, and extract data and memory from the target device. Currently 7 major vulnerabilities exist within Thunderbolt protocol with 9 attack vectors as noted in the Execution Flow.

Protect Your Infrastructure against CVE-2022-20736: Combat Critical CVE Threats

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