CVE-2024-6343

Sept. 5, 2024, 2:35 p.m.

4.9
Medium

Description

A buffer overflow vulnerability in the CGI program of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an authenticated attacker with administrator privileges to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.

Product(s) Impacted

Vendor Product Versions
Zyxel
  • Zld Firmware
  • Atp100
  • Atp100w
  • Atp200
  • Atp500
  • Atp700
  • Atp800
  • Usg Flex 100
  • Usg Flex 100ax
  • Usg Flex 100w
  • Usg Flex 200
  • Usg Flex 50
  • Usg Flex 500
  • Usg Flex 700
  • Usg Flex 50w
  • Usg 20w-vpn
  • *
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -
  • -

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o zyxel zld_firmware / / / / / / / /
h zyxel atp100 - / / / / / / /
h zyxel atp100w - / / / / / / /
h zyxel atp200 - / / / / / / /
h zyxel atp500 - / / / / / / /
h zyxel atp700 - / / / / / / /
h zyxel atp800 - / / / / / / /
o zyxel zld_firmware / / / / / / / /
h zyxel usg_flex_100 - / / / / / / /
h zyxel usg_flex_100ax - / / / / / / /
h zyxel usg_flex_100w - / / / / / / /
h zyxel usg_flex_200 - / / / / / / /
h zyxel usg_flex_50 - / / / / / / /
h zyxel usg_flex_500 - / / / / / / /
h zyxel usg_flex_700 - / / / / / / /
o zyxel zld_firmware / / / / / / / /
h zyxel usg_flex_50w - / / / / / / /
o zyxel zld_firmware / / / / / / / /
h zyxel usg_20w-vpn - / / / / / / /

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024

Tags

CWE-120
security@zyxel.com.tw
2024-09-03
CVE-2024-6343

CVSS Score

4.9 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: HIGH
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Sept. 3, 2024, 2:15 a.m.
Last Modified: Sept. 5, 2024, 2:35 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@zyxel.com.tw

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.