CVE-2024-20350Network attack vector

Appliance impersonation via static SSH host key

Published Sep 25, 2024 · Updated Sep 27, 2024

Static SSH host key use in Cisco Catalyst Center allows remote attackers to impersonate an appliance through SSH interception. The SSH server reuses a static host key instead of providing a unique appliance identity, so an intercepted client cannot distinguish the intended appliance from an attacker-controlled endpoint. Exploitation requires a machine-in-the-middle position and a user-initiated SSH connection, after which the attacker can inject terminal commands and steal valid credentials.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Static SSH host key use in Cisco Catalyst Center allows remote attackers to impersonate an appliance through SSH interception. The SSH server reuses a static host key instead of providing a unique appliance identity, so an intercepted client cannot distinguish the intended appliance from an attacker-controlled endpoint. Exploitation requires a machine-in-the-middle position and a user-initiated SSH connection, after which the attacker can inject terminal commands and steal valid credentials.

The record

CVE
CVE-2024-20350
Published
Sep 25, 2024
Updated
Sep 27, 2024
Vendor
ClamAV
Product
Cisco Catalyst Center
Classifications
CWE-321, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0.0
  2. Affected versionversion=1.4.0.0
  3. Affected versionversion=2.1.1.0
  4. Affected versionversion=2.1.1.3
  5. Affected versionversion=2.1.2.0
  6. Affected versionversion=2.1.2.3
  7. Affected versionversion=2.1.2.4
  8. Affected versionversion=2.1.2.5
  9. Affected versionversion=2.1.2.6
  10. Affected versionversion=2.1.2.7
  11. Affected versionversion=2.1.2.8
  12. Affected versionversion=2.2.1.0
  13. Affected versionversion=2.2.1.3
  14. Affected versionversion=2.2.2.0
  15. Affected versionversion=2.2.2.1
  16. Affected versionversion=2.2.2.3
  17. Affected versionversion=2.2.2.4
  18. Affected versionversion=2.2.2.5
  19. Affected versionversion=2.2.2.6
  20. Affected versionversion=2.2.2.7
  21. Affected versionversion=2.2.2.8
  22. Affected versionversion=2.2.2.9
  23. Affected versionversion=2.2.3.0
  24. Affected versionversion=2.2.3.3
  25. Affected versionversion=2.2.3.4
  26. Affected versionversion=2.2.3.5
  27. Affected versionversion=2.2.3.6
  28. Affected versionversion=2.3.2.1
  29. Affected versionversion=2.3.2.1-airgap
  30. Affected versionversion=2.3.2.1-AIRGAP
  31. Affected versionversion=2.3.2.1-airgap-ca
  32. Affected versionversion=2.3.2.1-AIRGAP-CA
  33. Affected versionversion=2.3.2.3
  34. Affected versionversion=2.3.3.0
  35. Affected versionversion=2.3.3.0-airgap
  36. Affected versionversion=2.3.3.0-AIRGAP
  37. Affected versionversion=2.3.3.1
  38. Affected versionversion=2.3.3.1-airgap
  39. Affected versionversion=2.3.3.1-AIRGAP
  40. Affected versionversion=2.3.3.3
  41. Affected versionversion=2.3.3.3-airgap
  42. Affected versionversion=2.3.3.3-AIRGAP
  43. Affected versionversion=2.3.3.3-airgap-ca
  44. Affected versionversion=2.3.3.3-AIRGAP-CA
  45. Affected versionversion=2.3.3.4
  46. Affected versionversion=2.3.3.4-airgap
  47. Affected versionversion=2.3.3.4-AIRGAP
  48. Affected versionversion=2.3.3.4-airgap-mdnac
  49. Affected versionversion=2.3.3.4-AIRGAP-MDNAC
  50. Affected versionversion=2.3.3.4-hf1
  51. Affected versionversion=2.3.3.4-HF1
  52. Affected versionversion=2.3.3.5
  53. Affected versionversion=2.3.3.5-airgap
  54. Affected versionversion=2.3.3.5-AIRGAP
  55. Affected versionversion=2.3.3.6
  56. Affected versionversion=2.3.3.6-70045-hf1
  57. Affected versionversion=2.3.3.6-70045-HF1
  58. Affected versionversion=2.3.3.6-airgap
  59. Affected versionversion=2.3.3.6-AIRGAP
  60. Affected versionversion=2.3.3.6-airgap-mdnac
  61. Affected versionversion=2.3.3.6-AIRGAP-MDNAC
  62. Affected versionversion=2.3.3.7
  63. Affected versionversion=2.3.3.7-72323
  64. Affected versionversion=2.3.3.7-72328-airgap
  65. Affected versionversion=2.3.3.7-72328-AIRGAP
  66. Affected versionversion=2.3.3.7-72328-mdnac
  67. Affected versionversion=2.3.3.7-72328-MDNAC
  68. Affected versionversion=2.3.3.7-airgap
  69. Affected versionversion=2.3.3.7-AIRGAP
  70. Affected versionversion=2.3.3.7-airgap-mdnac
  71. Affected versionversion=2.3.3.7-AIRGAP-MDNAC
  72. Affected versionversion=2.3.4.0
  73. Affected versionversion=2.3.4.0-airgap
  74. Affected versionversion=2.3.4.0-AIRGAP
  75. Affected versionversion=2.3.4.3
  76. Affected versionversion=2.3.4.3-airgap
  77. Affected versionversion=2.3.4.3-AIRGAP
  78. Affected versionversion=2.3.5.0
  79. Affected versionversion=2.3.5.0-airgap
  80. Affected versionversion=2.3.5.0-AIRGAP
  81. Affected versionversion=2.3.5.0-airgap-mdnac
  82. Affected versionversion=2.3.5.0-AIRGAP-MDNAC
  83. Affected versionversion=2.3.5.3
  84. Affected versionversion=2.3.5.3-airgap
  85. Affected versionversion=2.3.5.3-AIRGAP
  86. Affected versionversion=2.3.5.3-airgap-mdnac
  87. Affected versionversion=2.3.5.3-AIRGAP-MDNAC
  88. Affected versionversion=2.3.5.4
  89. Affected versionversion=2.3.5.4-airgap
  90. Affected versionversion=2.3.5.4-AIRGAP
  91. Affected versionversion=2.3.5.4-airgap-mdnac
  92. Affected versionversion=2.3.5.4-AIRGAP-MDNAC
  93. Affected versionversion=2.3.5.5
  94. Affected versionversion=2.3.5.5-70026-hf51
  95. Affected versionversion=2.3.5.5-70026-HF51
  96. Affected versionversion=2.3.5.5-70026-hf52
  97. Affected versionversion=2.3.5.5-70026-HF52
  98. Affected versionversion=2.3.5.5-70026-hf53
  99. Affected versionversion=2.3.5.5-70026-HF53
  100. Affected versionversion=2.3.5.5-70026-hf70
  101. Affected versionversion=2.3.5.5-70026-HF70
  102. Affected versionversion=2.3.5.5-airgap
  103. Affected versionversion=2.3.5.5-AIRGAP
  104. Affected versionversion=2.3.5.5-airgap-mdnac
  105. Affected versionversion=2.3.5.5-AIRGAP-MDNAC
  106. Affected versionversion=2.3.6.0
  107. Affected versionversion=2.3.6.0-airgap
  108. Affected versionversion=2.3.6.0-AIRGAP
  109. Affected versionversion=2.3.7.0
  110. Affected versionversion=2.3.7.0-airgap
  111. Affected versionversion=2.3.7.0-AIRGAP
  112. Affected versionversion=2.3.7.0-airgap-mdnac
  113. Affected versionversion=2.3.7.0-AIRGAP-MDNAC
  114. Affected versionversion=2.3.7.0-va
  115. Affected versionversion=2.3.7.0-VA
  116. Affected versionversion=2.3.7.3
  117. Affected versionversion=2.3.7.3-airgap
  118. Affected versionversion=2.3.7.3-AIRGAP
  119. Affected versionversion=2.3.7.3-airgap-mdnac
  120. Affected versionversion=2.3.7.3-AIRGAP-MDNAC
  121. Affected versionversion=2.3.7.4
  122. Affected versionversion=2.3.7.4-airgap
  123. Affected versionversion=2.3.7.4-AIRGAP
  124. Affected versionversion=2.3.7.4-airgap-mdnac
  125. Affected versionversion=2.3.7.4-AIRGAP-MDNAC

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Catalyst Centerversion=1.0.0.0; version=1.4.0.0; version=2.1.1.0; version=2.1.1.3; version=2.1.2.0; version=2.1.2.3; version=2.1.2.4; version=2.1.2.5; version=2.1.2.6; version=2.1.2.7; version=2.1.2.8; version=2.2.1.0; version=2.2.1.3; version=2.2.2.0; version=2.2.2.1; version=2.2.2.3; version=2.2.2.4; version=2.2.2.5; version=2.2.2.6; version=2.2.2.7; version=2.2.2.8; version=2.2.2.9; version=2.2.3.0; version=2.2.3.3; version=2.2.3.4; version=2.2.3.5; version=2.2.3.6; version=2.3.2.1; version=2.3.2.1-airgap; version=2.3.2.1-AIRGAP; version=2.3.2.1-airgap-ca; version=2.3.2.1-AIRGAP-CA; version=2.3.2.3; version=2.3.3.0; version=2.3.3.0-airgap; version=2.3.3.0-AIRGAP; version=2.3.3.1; version=2.3.3.1-airgap; version=2.3.3.1-AIRGAP; version=2.3.3.3; version=2.3.3.3-airgap; version=2.3.3.3-AIRGAP; version=2.3.3.3-airgap-ca; version=2.3.3.3-AIRGAP-CA; version=2.3.3.4; version=2.3.3.4-airgap; version=2.3.3.4-AIRGAP; version=2.3.3.4-airgap-mdnac; version=2.3.3.4-AIRGAP-MDNAC; version=2.3.3.4-hf1; version=2.3.3.4-HF1; version=2.3.3.5; version=2.3.3.5-airgap; version=2.3.3.5-AIRGAP; version=2.3.3.6; version=2.3.3.6-70045-hf1; version=2.3.3.6-70045-HF1; version=2.3.3.6-airgap; version=2.3.3.6-AIRGAP; version=2.3.3.6-airgap-mdnac; version=2.3.3.6-AIRGAP-MDNAC; version=2.3.3.7; version=2.3.3.7-72323; version=2.3.3.7-72328-airgap; version=2.3.3.7-72328-AIRGAP; version=2.3.3.7-72328-mdnac; version=2.3.3.7-72328-MDNAC; version=2.3.3.7-airgap; version=2.3.3.7-AIRGAP; version=2.3.3.7-airgap-mdnac; version=2.3.3.7-AIRGAP-MDNAC; version=2.3.4.0; version=2.3.4.0-airgap; version=2.3.4.0-AIRGAP; version=2.3.4.3; version=2.3.4.3-airgap; version=2.3.4.3-AIRGAP; version=2.3.5.0; version=2.3.5.0-airgap; version=2.3.5.0-AIRGAP; version=2.3.5.0-airgap-mdnac; version=2.3.5.0-AIRGAP-MDNAC; version=2.3.5.3; version=2.3.5.3-airgap; version=2.3.5.3-AIRGAP; version=2.3.5.3-airgap-mdnac; version=2.3.5.3-AIRGAP-MDNAC; version=2.3.5.4; version=2.3.5.4-airgap; version=2.3.5.4-AIRGAP; version=2.3.5.4-airgap-mdnac; version=2.3.5.4-AIRGAP-MDNAC; version=2.3.5.5; version=2.3.5.5-70026-hf51; version=2.3.5.5-70026-HF51; version=2.3.5.5-70026-hf52; version=2.3.5.5-70026-HF52; version=2.3.5.5-70026-hf53; version=2.3.5.5-70026-HF53; version=2.3.5.5-70026-hf70; version=2.3.5.5-70026-HF70; version=2.3.5.5-airgap; version=2.3.5.5-AIRGAP; version=2.3.5.5-airgap-mdnac; version=2.3.5.5-AIRGAP-MDNAC; version=2.3.6.0; version=2.3.6.0-airgap; version=2.3.6.0-AIRGAP; version=2.3.7.0; version=2.3.7.0-airgap; version=2.3.7.0-AIRGAP; version=2.3.7.0-airgap-mdnac; version=2.3.7.0-AIRGAP-MDNAC; version=2.3.7.0-va; version=2.3.7.0-VA; version=2.3.7.3; version=2.3.7.3-airgap; version=2.3.7.3-AIRGAP; version=2.3.7.3-airgap-mdnac; version=2.3.7.3-AIRGAP-MDNAC; version=2.3.7.4; version=2.3.7.4-airgap; version=2.3.7.4-AIRGAP; version=2.3.7.4-airgap-mdnac; version=2.3.7.4-AIRGAP-MDNAC

Published CVSS scores

7.5CiscoCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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