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CVE-2020-10221: High Vulnerability in rConfig

CVE-2020-10221 is a high-severity OS command injection vulnerability in rConfig through version 3.94. Remote attackers can exploit this flaw to execute arbitrary OS commands. Immediate remediation is essential to mitigate potential risks.

HIGHKnown ExploitedCVSS 8.8 · Published March 8, 2020

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CVE-2020-10221 is a high-severity vulnerability affecting rConfig versions through 3.94, specifically located in the file lib/ajaxHandlers/ajaxAddTemplate.php. This vulnerability allows remote attackers to execute arbitrary OS commands via shell metacharacters in the fileName POST parameter. The CVSS score of 8.8 indicates a high risk for organizations, emphasizing the need for prompt action.

Given the potential for arbitrary command execution, the real-world implications are significant. Attackers may leverage this vulnerability to gain unauthorized access to systems, leading to data breaches or service disruptions. Organizations utilizing rConfig should prioritize addressing this vulnerability in their security practices.

The exploitation status indicates that this vulnerability is known to have public proof of concept (PoC) available, which increases the urgency for organizations to apply necessary patches and updates. Organizations should prioritize patching immediately.

As this vulnerability is included in the Known Exploited Vulnerabilities (KEV) catalog, it is crucial for organizations to act swiftly to mitigate risks associated with potential exploitation.

Vulnerability Details

The vulnerability, CVE-2020-10221, allows attackers to execute arbitrary OS commands due to improper handling of input in the fileName parameter of the ajaxAddTemplate.php script. The CVSS version 3.1 score of 8.8 highlights the severity of this vulnerability, indicating high impact on confidentiality, integrity, and availability.

The affected product is rConfig, and it is critical for organizations to ensure they upgrade to the latest version to mitigate the risks associated with this vulnerability.

This vulnerability, classified under CWE-78, is indicative of improper neutralization of special elements used in an OS command.

Technical Analysis

The root cause of CVE-2020-10221 lies in the improper validation of user input in the fileName parameter. This leads to an OS command injection vulnerability, allowing attackers to execute arbitrary commands on the server.

The attack vector is network-based, with a low complexity for exploitation. The privileges required are low, meaning that an attacker does not need advanced access to exploit this vulnerability. Moreover, no user interaction is required, making it easier for an attacker to exploit the flaw.

The impacts on confidentiality, integrity, and availability are all rated as high, indicating that successful exploitation could lead to significant adverse effects on the organization's operations and data integrity.

Risk & Impact Analysis

Risk to organizations includes unauthorized access, data breaches, and potential service disruptions. The blast radius for this vulnerability is extensive, as it affects all versions of rConfig through 3.94. Organizations should assess their deployment of rConfig and prioritize patching immediately.

Considering the CVSS score of 8.8 and its inclusion in the KEV catalog, organizations must act promptly to mitigate the associated risks. The urgency is critical, and organizations should address this vulnerability in their immediate patch cycles.

Exploitation Status

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

Yes

Ransomware Use

No

Affected Versions

This vulnerability affects all versions of rConfig prior to the vendor patch, specifically those through version 3.94. Organizations using rConfig should ensure they are running a patched version to mitigate this vulnerability.

Mitigation & Remediation

Organizations should apply the latest patches provided by rConfig to remediate this vulnerability.

If patches are not available, consider implementing additional security measures such as input validation and sanitization to mitigate the risk of OS command injection.

Organizations may also consider engaging in penetration testing to assess their security posture against similar vulnerabilities.

Detection Guidance

To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual command executions and unexpected file access patterns.

Behavioral anomalies in application usage or network traffic should also be scrutinized as they may indicate exploitation attempts.

AppSecure Threat Intelligence Insight

The long-term significance of this vulnerability is underscored by its high CVSS score and the availability of public exploits. Organizations must recognize the patterns of exploitation associated with OS command injection vulnerabilities.

Security teams should enhance their assessment strategies to include regular reviews of third-party components and their vulnerabilities, especially with tools like rConfig.

A strategic takeaway is to establish a robust vulnerability management program, ensuring timely patching and thorough testing of all software components.

Organizations can refer to best practices in designing a vulnerability management program to strengthen their defenses.

Conducting regular penetration tests can also help identify exposure to similar vulnerabilities.

API security assessments are critical for organizations utilizing rConfig to ensure their endpoints are secure against such vulnerabilities.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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