PT-2023-2000 · NetGear · Netgear Orbi Router Rbr750

Dave Mcdaniel · Published 2023-03-21 · Updated 2023-03-29 · CVE-2022-38452

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 Netgear Orbi Router RBR750 version 4.6.8.5

Description A command execution issue exists in the hidden telnet service functionality. This can be exploited by sending a specially-crafted network request, potentially allowing an attacker to execute arbitrary commands. The issue is related to the use of the Blowfish cryptographic algorithm in the crypt 64bit up/down() function.

Recommendations For Netgear Orbi Router RBR750 version 4.6.8.5, consider disabling the hidden telnet service functionality until a patch is available. Restrict access to the UDP port 23 to minimize the risk of exploitation. Avoid using the vulnerable crypt 64bit up/down() function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Hidden Functionality

Weakness Enumeration

CWE-912

Related Identifiers

BDU:2023-01623

CVE-2022-38452

Affected Products

Netgear Orbi Router Rbr750

References · 12

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2022-1595 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-38452 · Security Note
• https://bdu.fstec.ru/vul/2023-01623 · Security Note
• https://osv.dev/vulnerability/CVE-2022-38452 · Vendor Advisory
• https://t.me/cybersecuritytechnologies/7977 · Telegram Post
• https://t.me/cibsecurity/60405 · Telegram Post
• https://t.me/true_secator/4198 · Telegram Post
• https://kb.netgear.com/000065567/Security-Advisory-for-Post-authentication-Command-Injection-on-the-RBR750-PSV-2022-0186 · Note
• https://kb.netgear.com/000065424 · Note
• https://t.me/cvenotify/47062 · Telegram Post
• https://t.me/cvenotify/46558 · Telegram Post
• https://t.me/cvenotify/46572 · Telegram Post