CVE-2023-20111Network attack vector

Credential disclosure via exposed hidden application fields

Published Aug 16, 2023 · Updated Aug 2, 2024

Information disclosure in Cisco Identity Services Engine allows remote authenticated users to read device entry credentials through its web interface. The web-based management interface improperly stores those credentials in hidden application fields and returns them for viewing after login. An authenticated web-interface account can recover device entry credentials that can aid further attacks.

CVSS severity6.5
Medium
EPSS probability0.74%
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 Identity Services Engine allows remote authenticated users to read device entry credentials through its web interface. The web-based management interface improperly stores those credentials in hidden application fields and returns them for viewing after login. An authenticated web-interface account can recover device entry credentials that can aid further attacks.

The record

CVE
CVE-2023-20111
Published
Aug 16, 2023
Updated
Aug 2, 2024
Vendor
ClamAV
Product
Cisco Identity Services Engine
Classifications
CWE-497, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 16, 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

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=2.6.0
  2. Affected versionversion=2.6.0 p1
  3. Affected versionversion=2.6.0 p10
  4. Affected versionversion=2.6.0 p11
  5. Affected versionversion=2.6.0 p12
  6. Affected versionversion=2.6.0 p2
  7. Affected versionversion=2.6.0 p3
  8. Affected versionversion=2.6.0 p5
  9. Affected versionversion=2.6.0 p6
  10. Affected versionversion=2.6.0 p7
  11. Affected versionversion=2.6.0 p8
  12. Affected versionversion=2.6.0 p9
  13. Affected versionversion=2.7.0
  14. Affected versionversion=2.7.0 p1
  15. Affected versionversion=2.7.0 p2
  16. Affected versionversion=2.7.0 p3
  17. Affected versionversion=2.7.0 p4
  18. Affected versionversion=2.7.0 p5
  19. Affected versionversion=2.7.0 p6
  20. Affected versionversion=2.7.0 p7
  21. Affected versionversion=2.7.0 p9
  22. Affected versionversion=3.0.0
  23. Affected versionversion=3.0.0 p1
  24. Affected versionversion=3.0.0 p2
  25. Affected versionversion=3.0.0 p3
  26. Affected versionversion=3.0.0 p4
  27. Affected versionversion=3.0.0 p5
  28. Affected versionversion=3.0.0 p6
  29. Affected versionversion=3.0.0 p7
  30. Affected versionversion=3.1.0
  31. Affected versionversion=3.1.0 p1
  32. Affected versionversion=3.1.0 p3
  33. Affected versionversion=3.1.0 p4
  34. Affected versionversion=3.1.0 p5
  35. Affected versionversion=3.1.0 p6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Identity Services Engineversion=2.6.0; version=2.6.0 p1; version=2.6.0 p10; version=2.6.0 p11; version=2.6.0 p12; version=2.6.0 p2; version=2.6.0 p3; version=2.6.0 p5; version=2.6.0 p6; version=2.6.0 p7; version=2.6.0 p8; version=2.6.0 p9; version=2.7.0; version=2.7.0 p1; version=2.7.0 p2; version=2.7.0 p3; version=2.7.0 p4; version=2.7.0 p5; version=2.7.0 p6; version=2.7.0 p7; version=2.7.0 p9; version=3.0.0; version=3.0.0 p1; version=3.0.0 p2; version=3.0.0 p3; version=3.0.0 p4; version=3.0.0 p5; version=3.0.0 p6; version=3.0.0 p7; version=3.1.0; version=3.1.0 p1; version=3.1.0 p3; version=3.1.0 p4; version=3.1.0 p5; version=3.1.0 p6

Published CVSS scores

6.5Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-497Exposure of Sensitive System Information to an Unauthorized Control Sphere
T1552Unsecured Credentials

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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