CVE-2023-6764 (GCVE-0-2023-6764)

Vulnerability from cvelistv5 – Published: 2024-02-20 02:14 – Updated: 2024-08-02 08:42
VLAI
Summary
A format string vulnerability in a function of the IPSec VPN feature in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an attacker to achieve unauthorized remote code execution by sending a sequence of specially crafted payloads containing an invalid pointer; however, such an attack would require detailed knowledge of an affected device’s memory layout and configuration.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-01 05:01 UTC
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Zyxel ATP series firmware Affected: version 4.32 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX series firmware Affected: version 4.50 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG FLEX 50(W) series firmware Affected: version 4.16 through 5.37 Patch 1
Create a notification for this product.
Zyxel USG20(W)-VPN series firmware Affected: version 4.16 through 5.37 Patch 1
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zyxel atp_firmware Affected: 4.32 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:atp_firmware:-:*:*:*:*:*:*:*
Create a notification for this product.
zyxel usg_flex_firmware Affected: 4.50 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:usg_flex_firmware:-:*:*:*:*:*:*:*
Create a notification for this product.
zyxel usg_flex_50w_firmware Affected: 4.16 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:usg_flex_50w_firmware:-:*:*:*:*:*:*:*
Create a notification for this product.
zyxel usg_20w-vpn_firmware Affected: 4.16 , ≤ 5.37patch1 (custom)
    cpe:2.3:o:zyxel:usg_20w-vpn_firmware:-:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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