PT-2023-3867 · Axis · Axis A1001

Published 2023-07-25 · Updated 2024-11-08 · CVE-2023-21406

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions AXIS A1001 (affected versions not specified)

Description The issue is related to a heap-based buffer overflow in the pacsiod process, which handles Open Supervised Device Protocol (OSDP) communication. This allows an attacker to write outside the allocated buffer by appending invalid data to an OSDP message, potentially enabling the execution of arbitrary code. The vulnerability could be exploited by an attacker with physical access to the RS-485 interface, located on the back panel of the reader, to unlock doors and modify logs without detection. Additionally, the vulnerability could be used for remote code execution on the internal access controller from outside the target facility through the serial communication channel between the reader and the controller.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Heap Based Buffer Overflow

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-122

CWE-120

Related Identifiers

BDU:2023-04159

CVE-2023-21406

Affected Products

Axis A1001

References · 9

• https://axis.com/dam/public/1b/21/5f/cve-2023-21406-en-US-407245.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-21406 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-21406 · Security Note
• https://bdu.fstec.ru/vul/2023-04159 · Security Note
• https://t.me/cvenotify/99938 · Telegram Post
• https://t.me/cibsecurity/67216 · Telegram Post
• https://t.me/true_secator/4665 · Telegram Post
• https://t.me/cvenotify/101043 · Telegram Post
• https://cisa.gov/news-events/ics-advisories/icsa-23-206-01 · Note