CVE-2024-20370

Root privilege escalation via insecure FXOS file permissions

Published Oct 23, 2024 · Updated Oct 26, 2024

Privilege escalation in Cisco ASA Software and Firepower Threat Defense allows local administrators to obtain root access through the FXOS CLI. Insecure storage and permissions for system configurations and executable files let downloaded malicious system files influence FXOS CLI configuration. Exploitation requires valid administrative credentials and a default-configured Firepower 1000, 2100, Secure Firewall 3100, or 4200 device.

CVSS severity6.0
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Cisco ASA Software and Firepower Threat Defense allows local administrators to obtain root access through the FXOS CLI. Insecure storage and permissions for system configurations and executable files let downloaded malicious system files influence FXOS CLI configuration. Exploitation requires valid administrative credentials and a default-configured Firepower 1000, 2100, Secure Firewall 3100, or 4200 device.

The record

CVE
CVE-2024-20370
Published
Oct 23, 2024
Updated
Oct 26, 2024
Vendor
ClamAV
Product
Cisco Adaptive Security Appliance (ASA) Software
Classifications
CWE-264, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 26, 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=9.17.1
  2. Affected versionversion=9.17.1.10
  3. Affected versionversion=9.17.1.11
  4. Affected versionversion=9.17.1.13
  5. Affected versionversion=9.17.1.15
  6. Affected versionversion=9.17.1.20
  7. Affected versionversion=9.17.1.30
  8. Affected versionversion=9.17.1.33
  9. Affected versionversion=9.17.1.39
  10. Affected versionversion=9.17.1.7
  11. Affected versionversion=9.17.1.9
  12. Affected versionversion=9.17.1 <=9.17.1.39
  13. Affected versionversion=9.18.1
  14. Affected versionversion=9.18.1.3
  15. Affected versionversion=9.18.1 <=9.18.4.22
  16. Affected versionversion=9.18.2
  17. Affected versionversion=9.18.2.5
  18. Affected versionversion=9.18.2.7
  19. Affected versionversion=9.18.2.8
  20. Affected versionversion=9.18.3
  21. Affected versionversion=9.18.3.39
  22. Affected versionversion=9.18.3.46
  23. Affected versionversion=9.18.3.53
  24. Affected versionversion=9.18.3.55
  25. Affected versionversion=9.18.3.56
  26. Affected versionversion=9.18.4
  27. Affected versionversion=9.18.4.22
  28. Affected versionversion=9.18.4.5
  29. Affected versionversion=9.18.4.8
  30. Affected versionversion=9.19.1
  31. Affected versionversion=9.19.1.12
  32. Affected versionversion=9.19.1.18
  33. Affected versionversion=9.19.1.22
  34. Affected versionversion=9.19.1.24
  35. Affected versionversion=9.19.1.27
  36. Affected versionversion=9.19.1.28
  37. Affected versionversion=9.19.1.5
  38. Affected versionversion=9.19.1.9
  39. Affected versionversion=9.19.1 <=9.19.1.28
  40. Affected versionversion=9.20.1
  41. Affected versionversion=9.20.1.5
  42. Affected versionversion=9.20.1 <=9.20.2.10
  43. Affected versionversion=9.20.2
  44. Affected versionversion=9.20.2.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

ClamAV · Cisco Adaptive Security Appliance (ASA) Softwareversion=9.17.1; version=9.17.1.10; version=9.17.1.11; version=9.17.1.13; version=9.17.1.15; version=9.17.1.20; version=9.17.1.30; version=9.17.1.33; version=9.17.1.39; version=9.17.1.7; version=9.17.1.9; version=9.17.1 <=9.17.1.39; version=9.18.1; version=9.18.1.3; version=9.18.1 <=9.18.4.22; version=9.18.2; version=9.18.2.5; version=9.18.2.7; version=9.18.2.8; version=9.18.3; version=9.18.3.39; version=9.18.3.46; version=9.18.3.53; version=9.18.3.55; version=9.18.3.56; version=9.18.4; version=9.18.4.22; version=9.18.4.5; version=9.18.4.8; version=9.19.1; version=9.19.1.12; version=9.19.1.18; version=9.19.1.22; version=9.19.1.24; version=9.19.1.27; version=9.19.1.28; version=9.19.1.5; version=9.19.1.9; version=9.19.1 <=9.19.1.28; version=9.20.1; version=9.20.1.5; version=9.20.1 <=9.20.2.10; version=9.20.2; version=9.20.2.10
ClamAV · Cisco Firepower Threat Defenseversion=7.1.0; version=7.1.0.1; version=7.1.0.2; version=7.1.0.3; version=7.1.0 <=7.1.0.3; version=7.2.0; version=7.2.0.1; version=7.2.0 <=7.2.8.1; version=7.2.1; version=7.2.2; version=7.2.3; version=7.2.4; version=7.2.4.1; version=7.2.5; version=7.2.5.1; version=7.2.5.2; version=7.2.6; version=7.2.7; version=7.2.8; version=7.2.8.1; version=7.3.0; version=7.3.0 <=7.3.1.2; version=7.3.1; version=7.3.1.1; version=7.3.1.2; version=7.4.0; version=7.4.0 <=7.4.1.1; version=7.4.1; version=7.4.1.1

Published CVSS scores

6.0Cisco Systems, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-264Permissions, Privileges, and Access Controls
T1068Exploitation for Privilege Escalation

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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