PT-2022-8685 · Optilink · Optilink Op-Xt71000N

Disguised_Noob + 1 · Published 2022-11-23 · Updated 2022-11-23 · CVE-2020-23592

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OPTILINK OP-XT71000N Hardware Version: V2.2, Firmware Version: OP V3.3.1-191028

Description A vulnerability allows an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack to reset the ONU to factory default through the API endpoint "/mgm dev reset.asp". Resetting to default leads to escalation of privileges by logging in with default credentials.

Recommendations For OPTILINK OP-XT71000N Hardware Version: V2.2, Firmware Version: OP V3.3.1-191028, consider disabling access to the "/mgm dev reset.asp" API endpoint until a patch is available to prevent exploitation. Additionally, changing default credentials after a reset can help mitigate the risk of escalation of privileges. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2020-23592

Affected Products

Optilink Op-Xt71000N

References · 5

• 🔥 https://github.com/huzaifahussain98/CVE-2020-23592 · Exploit
• https://osv.dev/vulnerability/CVE-2020-23592 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-23592 · Security Note
• https://t.me/cibsecurity/53393 · Telegram Post
• https://t.me/cvenotify/38285 · Telegram Post