PT-2023-4221 · Tenda · Tenda Ac8

Published 2023-06-02 · Updated 2025-01-08 · CVE-2023-33673

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda AC8 versions 4.0-V16.03.34.06

Description The issue is related to a buffer overflow in the formSetFirewallCfg function of the Tenda AC8 router's firmware, allowing a remote attacker to execute arbitrary code. The vulnerability can be exploited via the firewallEn parameter in the formSetFirewallCfg function.

Recommendations For version 4.0-V16.03.34.06, as a temporary workaround, consider disabling the formSetFirewallCfg function until a patch is available. Restrict access to the firewallEn parameter in the affected API endpoint 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

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-04536

CVE-2023-33673

Affected Products

Tenda Ac8

References · 7

• 🔥 https://github.com/DDizzzy79/Tenda-CVE/blob/main/AC8V4.0/N6/README.md · Exploit
• 🔥 https://github.com/DDizzzy79/Tenda-CVE/tree/main/AC8V4.0/N6 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-33673 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/696042/?sphrase_id=45537 · Security Note
• https://osv.dev/vulnerability/CVE-2023-33673 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-04536 · Security Note
• https://t.me/cibsecurity/64955 · Telegram Post