PT-2023-5146 · Milesight · Milesight Ur32L
Francesco Benvenuto
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Published
2023-07-06
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Updated
2023-08-02
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CVE-2023-25086
CVSS v2.0
9.0
High
| Vector | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Milesight UR32L version 32.3.0.5
Description
The issue is caused by a buffer overflow vulnerability in the
firewall handler set function of the Milesight UR32L router's firmware. This vulnerability can be exploited by a remote attacker to execute arbitrary code. The buffer overflow occurs due to the use of an unsafe sprintf pattern and can be triggered by a specially crafted HTTP request. The index and dport variables are involved in this vulnerability.Recommendations
For Milesight UR32L version 32.3.0.5, consider disabling the
firewall handler set function until a patch is available to prevent exploitation. Restrict access to the vtysh ubus binary to minimize the risk of arbitrary code execution. Avoid using the index and dport variables in the affected HTTP requests until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Stack Overflow
Memory Corruption
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Related Identifiers
Affected Products
Milesight Ur32L