CVE-2021-30497 in the critical feed json
Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated users to read arbitrary files via Absolute Path Traversal.
published 2022-04-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17418
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 96.6%
- EPSS 96.6% chance of exploitation in 30 days, percentile 99.8%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated users to read arbitrary files via Absolute Path Traversal. The imageFilePath parameter processed by the /AvalancheWeb/image endpoint is not verified to be within the scope of the image folder, e.g., the attacker can obtain sensitive information via the C:/Windows/system32/config/system.sav value.
Patch / fix
Exploit prediction
96.58% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Ivanti Avalanche 6.3.2 - Local File Inclusion nuclei detection template
- ssd-disclosure.com https://ssd-disclosure.com/ssd-advisory-ivanti-avalanche-directory-traversal/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
forums.ivanti.com
/s/article/Security-Alert-CVE-2021-30497-Directory-Traversal-Vulnerability?language=en_US
patch, vendor-advisory
-
ssd-disclosure.com
/ssd-advisory-ivanti-avalanche-directory-traversal/
exploit, third-party-advisory
-
help.ivanti.com
/wl/help/en_us/aod/5.4/Avalanche/Console/Launching_the_Avalanche.htm
vendor-advisory
Sources
- CVE List CVE-2021-30497
- NVD CVE-2021-30497
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