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CVE-2024-7339: Medium Vulnerability in Provision-ISR and TVT DVR Products

CVE-2024-7339 is a medium-severity vulnerability affecting multiple Provision-ISR and TVT DVR models. It allows remote information disclosure, necessitating immediate action for affected organizations.

MEDIUMPublic ExploitCVSS 6.9 · Published August 1, 2024

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CVE-2024-7339 is a medium-severity vulnerability affecting the TVT DVR TD-2104TS-CL, DVR TD-2108TS-HP, Provision-ISR DVR SH-4050A5-5L(MM), and AVISION DVR AV108T. This vulnerability allows for information disclosure through the manipulation of unknown code in the file /queryDevInfo. Attackers can initiate this exploit remotely, posing a significant risk to organizations utilizing these devices. The exploit has been publicly disclosed, with the identifier VDB-273262 assigned to it. Organizations should prioritize patching immediately.

The severity level of this vulnerability is classified as medium due to a CVSS score of 6.9. Understanding this classification is crucial for organizations to assess the potential impact on their systems. The vulnerability's exploitability is high, indicating that organizations need to take this threat seriously and act quickly to mitigate risks.

The risk to organizations includes unauthorized access to sensitive device information, which could lead to further attacks or exploitation. Given the public nature of the exploit, it is essential for affected organizations to take preventative measures immediately.

In summary, organizations utilizing affected TVT and Provision-ISR DVR products must act quickly to address CVE-2024-7339. The urgency for defenders cannot be overstated; patching and remediation efforts should be initiated as soon as possible.

Vulnerability Details

CVE-2024-7339 affects the TVT DVR TD-2104TS-CL, DVR TD-2108TS-HP, Provision-ISR DVR SH-4050A5-5L(MM), and AVISION DVR AV108T. The vulnerability is categorized under CWE-200, indicating it involves information disclosure. The CVSS score of 6.9 indicates a medium severity, marking it as a significant risk for organizations. The vulnerability was published on August 1, 2024, and remains analyzed without a vendor response.

Technical Analysis

The root cause of CVE-2024-7339 lies in improper code handling in the /queryDevInfo file. The attack vector is network-based, requiring low complexity to exploit, with no privileges needed and no user interaction required. The vulnerability impacts confidentiality, allowing sensitive information to be disclosed without affecting integrity or availability.

Risk & Impact Analysis

The real-world risk associated with CVE-2024-7339 is significant. Organizations deploying these DVR products may inadvertently expose sensitive information, leading to breaches and unauthorized access. The potential blast radius for this vulnerability is considerable, as it affects multiple device models. Given the medium CVSS score and the high exploitability, organizations should address this vulnerability in their immediate patch cycle.

Exploitation Status

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

No

Ransomware Use

No

Affected Versions

Affected versions include various firmware versions for the TVT DVR TD-2104TS-CL, TD-2108TS-HP, Provision-ISR DVR SH-4050A5-5L(MM), and AVISION DVR AV108T. If specific version information is missing, organizations should refer to the vendor for patches.

Mitigation & Remediation

Organizations should implement the following measures to mitigate CVE-2024-7339: apply the latest firmware updates from the vendor, ensure configurations are hardened, and monitor network traffic for unusual behavior. For comprehensive security, organizations may consider engaging in penetration testing to identify potential vulnerabilities.

Detection Guidance

Organizations should monitor logs for indicators of unauthorized access attempts, including unusual queries to the /queryDevInfo endpoint. Additionally, behavioral anomalies should be analyzed to detect potential exploitation of this vulnerability.

AppSecure Threat Intelligence Insight

The significance of CVE-2024-7339 highlights the need for organizations to prioritize security in their device management and monitoring strategies. This vulnerability represents a pattern where insufficient response to vulnerabilities can lead to severe risks. Organizations should take this as a lesson to enhance their security posture and ensure timely updates and monitoring practices.

For further reading, organizations can refer to the following resources: vulnerability management program and penetration testing methodology for best practices.

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

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