CVE-2023-33011 (GCVE-0-2023-33011)

Vulnerability from cvelistv5 – Published: 2023-07-17 17:15 – Updated: 2024-11-07 19:08
VLAI
Summary
A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted PPPoE configuration on an affected device when the cloud management mode is enabled.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-134 - Use of Externally-Controlled Format String
Assigner
References
Impacted products
Vendor Product Version
Zyxel ATP series firmware Affected: 5.10 through 5.36 Patch 2
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Zyxel USG FLEX series firmware Affected: 5.00 through 5.36 Patch 2
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Zyxel USG FLEX 50(W) series firmware Affected: 5.10 through 5.36 Patch 2
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Zyxel USG20(W)-VPN series firmware Affected: 5.10 through 5.36 Patch 2
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Zyxel VPN series firmware Affected: 5.00 through 5.36 Patch 2
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zyxel vpn_series_firmware Affected: 5.00 , ≤ 5.36_patch_2 (custom)
    cpe:2.3:o:zyxel:vpn_series_firmware:*:*:*:*:*:*:*:*
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zyxel atp100_firmware Affected: 5.10 , ≤ 5.36_patch_2 (custom)
    cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
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zyxel usg_flex_series_firmware Affected: 5.0.0 , ≤ 5.36_patch_2 (custom)
    cpe:2.3:o:zyxel:usg_flex_series_firmware:*:*:*:*:*:*:*:*
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zyxel usg_flex_50\/w\/_series_firmware Affected: 5.10 , ≤ 5.36_patch_2 (custom)
    cpe:2.3:o:zyxel:usg_flex_50\/w\/_series_firmware:*:*:*:*:*:*:*:*
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zyxel usg20w-vpn_firmware Affected: 5.10 , ≤ 5.36_patch_2 (custom)
    cpe:2.3:o:zyxel:usg20w-vpn_firmware:*:*:*:*:*:*:*:*
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"A format string vulnerability in the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2,  USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted PPPoE configuration on an affected device when the cloud management mode is enabled.\"}]",
      "id": "CVE-2023-33011",
      "lastModified": "2024-11-21T08:04:24.097",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security@zyxel.com.tw\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 5.9}]}",
      "published": "2023-07-17T18:15:09.397",
      "references": "[{\"url\": \"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers\", \"source\": \"security@zyxel.com.tw\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "security@zyxel.com.tw",
      "vulnStatus": "Modified",
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}


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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.