What is the severity of CVE-2023-34435?

CVE-2023-34435 is considered a critical vulnerability due to its potential for arbitrary firmware updates.

How do I fix CVE-2023-34435?

To mitigate CVE-2023-34435, update the firmware to a version that addresses this vulnerability or apply relevant patches provided by the vendor.

What types of devices are affected by CVE-2023-34435?

Devices affected by CVE-2023-34435 include those using Realtek rtl819x Jungle SDK v3.4.11 and certain Level1 Wbr-6013 Firmware versions.

What is the impact of CVE-2023-34435 if exploited?

If exploited, CVE-2023-34435 allows attackers to upload malicious firmware, potentially compromising the affected device.

Is there a workaround for CVE-2023-34435?

While there is no official workaround for CVE-2023-34435, limiting network access and monitoring for suspicious activity may reduce risk.

Vulnerability/
CVE-2023-34435

high

7.2

CWE

347

8/7/2024

23/7/2024

CVE-2023-34435

First published: Mon Jul 08 2024(Updated: )

A firmware update vulnerability exists in the boa formUpload functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted network packets can lead to arbitrary firmware update. An attacker can provide a malicious file to trigger this vulnerability.

Credit: talos-cna@cisco.com

Affected Software	Affected Version	How to fix
Realtek Rtl819x Jungle Software Development Kit	=3.4.11
All of
Level1 Wbr-6013 Firmware	=rer4_a_v3411b_2t2r_lev_09_170623
Level1 Wbr-6013

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Reference Links

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1874

Frequently Asked Questions

What is the severity of CVE-2023-34435?
CVE-2023-34435 is considered a critical vulnerability due to its potential for arbitrary firmware updates.
How do I fix CVE-2023-34435?
To mitigate CVE-2023-34435, update the firmware to a version that addresses this vulnerability or apply relevant patches provided by the vendor.
What types of devices are affected by CVE-2023-34435?
Devices affected by CVE-2023-34435 include those using Realtek rtl819x Jungle SDK v3.4.11 and certain Level1 Wbr-6013 Firmware versions.
What is the impact of CVE-2023-34435 if exploited?
If exploited, CVE-2023-34435 allows attackers to upload malicious firmware, potentially compromising the affected device.
Is there a workaround for CVE-2023-34435?
While there is no official workaround for CVE-2023-34435, limiting network access and monitoring for suspicious activity may reduce risk.

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vendor/realtek
canonical/realtek rtl819x jungle software development kit
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version/level1 wbr-6013 firmware/rer4_a_v3411b_2t2r_lev_09_170623
canonical/level1 wbr-6013

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