CVE-2021-46279 Vulnerability Analysis & Exploit Details

CVE-2021-46279
Vulnerability Scoring

5.8
/10
Significant Risk

Security assessments indicate that CVE-2021-46279 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2021-46279 Details

Status: Modified

Last updated: 🕡 21 Nov 2024, 06:33 UTC
Originally published on: 🕑 24 Oct 2022, 14:15 UTC

Time between publication and last update: 758 days

CVSS Release: version 3

CVSS3 Source

prodsec@nozominetworks.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2021-46279 Vulnerability Summary

CVE-2021-46279: Session fixation and insufficient session expiration vulnerabilities allow an attacker to perfom session hijacking attacks against users. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.

Assessing the Risk of CVE-2021-46279

Access Complexity Graph

The exploitability of CVE-2021-46279 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-2021-46279

CVE-2021-46279 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

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-2021-46279, 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-2021-46279, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2021-46279 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2021-46279 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2021-46279 may slightly degrade system performance without fully affecting service availability.

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.213% (probability of exploit)

EPSS Percentile: 59.77% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 40.23% of others.

CVE-2021-46279 References

External References

CWE Common Weakness Enumeration

CWE-613

Vulnerable Configurations

  • cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*
    cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*
  • cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*
    cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2021-46279: Combat Critical CVE Threats

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