PT-2023-5173 · Milesight · Milesight Ur32L

Francesco Benvenuto · Published 2023-07-06 · Updated 2023-08-02 · CVE-2023-25087

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base 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 in the firewall handler set function, allowing a remote attacker to execute arbitrary code. A specially crafted HTTP request can trigger this issue, potentially leading to arbitrary code execution. The buffer overflow occurs with the index and to dport variables.

Recommendations For Milesight UR32L version 32.3.0.5, consider disabling the firewall handler set function as a temporary workaround until a patch is available. Restrict access to the vtysh ubus binary to minimize the risk of exploitation. Avoid using the index and to dport variables in the affected API endpoint until the issue is resolved.

Exploit

Fix

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2023-05765

CVE-2023-25087

Affected Products

Milesight Ur32L

References · 5

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2023-1716 · Exploit
• https://bdu.fstec.ru/vul/2023-05765 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-25087 · Security Note
• https://osv.dev/vulnerability/CVE-2023-25087 · Vendor Advisory
• https://vuldb.com/ru/?id.233180 · Note