CVE-2023-20034Network attack vector

Unauthenticated database disclosure via static credentials

Published Sep 27, 2023 · Updated Aug 2, 2024

Information disclosure in Cisco Catalyst SD-WAN Manager allows remote attackers to read Elasticsearch database content over HTTP. The Elasticsearch access-control implementation accepts static credentials on port 9200, granting Elasticsearch-user access to crafted requests. No authentication or user interaction is required, and the documented consequence is read-only exposure of database content.

CVSS severity7.5
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Cisco Catalyst SD-WAN Manager allows remote attackers to read Elasticsearch database content over HTTP. The Elasticsearch access-control implementation accepts static credentials on port 9200, granting Elasticsearch-user access to crafted requests. No authentication or user interaction is required, and the documented consequence is read-only exposure of database content.

The record

CVE
CVE-2023-20034
Published
Sep 27, 2023
Updated
Aug 2, 2024
Vendor
ClamAV
Product
Cisco Catalyst SD-WAN Manager
Classifications
CWE-798, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=17.2.10
  2. Affected versionversion=17.2.4
  3. Affected versionversion=17.2.5
  4. Affected versionversion=17.2.6
  5. Affected versionversion=17.2.7
  6. Affected versionversion=17.2.8
  7. Affected versionversion=17.2.9
  8. Affected versionversion=18.2.0
  9. Affected versionversion=18.3.0
  10. Affected versionversion=18.3.1
  11. Affected versionversion=18.3.1.1
  12. Affected versionversion=18.3.3
  13. Affected versionversion=18.3.3.1
  14. Affected versionversion=18.3.4
  15. Affected versionversion=18.3.5
  16. Affected versionversion=18.3.6.1
  17. Affected versionversion=18.3.7
  18. Affected versionversion=18.3.8
  19. Affected versionversion=18.4.0
  20. Affected versionversion=18.4.0.1
  21. Affected versionversion=18.4.1
  22. Affected versionversion=18.4.3
  23. Affected versionversion=18.4.302
  24. Affected versionversion=18.4.303
  25. Affected versionversion=18.4.4
  26. Affected versionversion=18.4.5
  27. Affected versionversion=18.4.6
  28. Affected versionversion=19.1.0
  29. Affected versionversion=19.2.0
  30. Affected versionversion=19.2.097
  31. Affected versionversion=19.2.099
  32. Affected versionversion=19.2.1
  33. Affected versionversion=19.2.2
  34. Affected versionversion=19.2.3
  35. Affected versionversion=19.2.31
  36. Affected versionversion=19.2.4
  37. Affected versionversion=19.2.929
  38. Affected versionversion=19.3.0
  39. Affected versionversion=20.1.1
  40. Affected versionversion=20.1.1.1
  41. Affected versionversion=20.1.12
  42. Affected versionversion=20.1.2
  43. Affected versionversion=20.1.3
  44. Affected versionversion=20.3.1
  45. Affected versionversion=20.3.2
  46. Affected versionversion=20.3.2.1
  47. Affected versionversion=20.3.3
  48. Affected versionversion=20.3.3.1
  49. Affected versionversion=20.4.1
  50. Affected versionversion=20.4.1.1
  51. Affected versionversion=20.4.1.2
  52. Affected versionversion=20.4.2
  53. Affected versionversion=20.4.2.1
  54. Affected versionversion=20.4.2.2
  55. Affected versionversion=20.4.2.3
  56. Affected versionversion=20.5.1
  57. Affected versionversion=20.5.1.1
  58. Affected versionversion=20.5.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Catalyst SD-WAN Managerversion=17.2.10; version=17.2.4; version=17.2.5; version=17.2.6; version=17.2.7; version=17.2.8; version=17.2.9; version=18.2.0; version=18.3.0; version=18.3.1; version=18.3.1.1; version=18.3.3; version=18.3.3.1; version=18.3.4; version=18.3.5; version=18.3.6.1; version=18.3.7; version=18.3.8; version=18.4.0; version=18.4.0.1; version=18.4.1; version=18.4.3; version=18.4.302; version=18.4.303; version=18.4.4; version=18.4.5; version=18.4.6; version=19.1.0; version=19.2.0; version=19.2.097; version=19.2.099; version=19.2.1; version=19.2.2; version=19.2.3; version=19.2.31; version=19.2.4; version=19.2.929; version=19.3.0; version=20.1.1; version=20.1.1.1; version=20.1.12; version=20.1.2; version=20.1.3; version=20.3.1; version=20.3.2; version=20.3.2.1; version=20.3.3; version=20.3.3.1; version=20.4.1; version=20.4.1.1; version=20.4.1.2; version=20.4.2; version=20.4.2.1; version=20.4.2.2; version=20.4.2.3; version=20.5.1; version=20.5.1.1; version=20.5.1.2

Published CVSS scores

7.5CiscoCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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-798Use of Hard-coded Credentials
T1078.001Default Accounts

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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