PT-2023-5020 · Milesight · Milesight Ur32L

Francesco Benvenuto · Published 2023-07-06 · Updated 2023-08-02 · CVE-2023-25083

Positive Technologies (AI Summary)

CVSS v2.0

8.3

High

Base vector

AV:N/AC:L/Au:M/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, allowing a remote attacker to execute arbitrary code. This occurs due to the use of an unsafe sprintf pattern in the vtysh ubus binary. A specially crafted HTTP request can trigger this vulnerability, which involves the ip and mac variables.

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 ip and mac variables in the affected HTTP requests until the issue is resolved.

Exploit

Fix

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

BDU:2023-05559

CVE-2023-25083

Affected Products

Milesight Ur32L

References · 7

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2023-1716 · Exploit
• https://bdu.fstec.ru/vul/2023-05559 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-25083 · Security Note
• https://osv.dev/vulnerability/CVE-2023-25083 · Vendor Advisory
• https://t.me/cvenotify/53769 · Telegram Post
• https://vuldb.com/ru/?id.233179 · Note
• https://t.me/cvenotify/53789 · Telegram Post