PT-2023-5090 · Milesight · Milesight Ur32L

Francesco Benvenuto · Published 2023-07-06 · Updated 2023-08-02 · CVE-2023-25090

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 handle interface acl 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 interface and in acl variables are involved in this vulnerability.

Recommendations For Milesight UR32L version 32.3.0.5, consider disabling the handle interface acl 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 interface and in acl variables in the affected API endpoint 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

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2023-05650

CVE-2023-25090

Affected Products

Milesight Ur32L

References · 6

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2023-1716 · Exploit
• https://osv.dev/vulnerability/CVE-2023-25090 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-25090 · Security Note
• https://bdu.fstec.ru/vul/2023-05650 · Security Note
• https://vuldb.com/ru/?id.233189 · Note
• https://t.me/cibsecurity/66083 · Telegram Post