PT-2021-6033 · Luci+1 · Luci+1

Published 2021-12-23 · Updated 2023-05-24 · CVE-2021-45906

Positive Technologies (AI Summary)

CVSS v2.0

5.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions OpenWrt version 21.02.1

Description The issue is related to a lack of protection for the web page structure in the NAT Rules Name screen of the LuCI configuration web interface in OpenWrt. This can be exploited by a remote attacker to perform cross-site scripting (XSS) attacks.

Recommendations For OpenWrt version 21.02.1, as a temporary workaround, consider disabling access to the NAT Rules Name screen until a patch is available. Restrict access to the vulnerable component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2022-00614

CVE-2021-45906

Affected Products

Luci

Openwrt

References · 11

• 🔥 https://bugs.openwrt.org/index.php?do=details&task_id=4199 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-45906 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45906 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00614 · Security Note
• https://github.com/openwrt/luci/commit/ad33852de03b28865505ecdd30cdc8c24f24417c · Note
• https://github.com/openwrt/luci/commit/db88156dff24f58c96706bc350ec97b7f5341c86 · Note
• https://github.com/openwrt/luci/commit/993151504e8e810c083d3257555bdcdc2f00673a · Note
• https://bugs.openwrt.org/index.php?do=details&task_id=4199 · Note
• https://t.me/cibsecurity/34696 · Telegram Post
• https://vuldb.com/?id.189403 · Note
• https://t.me/cvenotify/51053 · Telegram Post