CVE-2021-30497 : Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated users to read arb

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.

Published 2022-04-06 02:15:08

Updated 2022-04-13 17:44:42

Source MITRE

View at NVD, CVE.org

Vulnerability category: Directory traversal

Products affected by CVE-2021-30497

Ivanti » Avalanche » Version: 6.3.2 For Windows
cpe:2.3:a:ivanti:avalanche:6.3.2:*:*:*:*:windows:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-30497

EPSS FAQ

93.70%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-30497

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2021-30497

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-30497

https://ssd-disclosure.com/ssd-advisory-ivanti-avalanche-directory-traversal/

SSD Advisory – Ivanti Avalanche Directory Traversal - SSD Secure Disclosure
Exploit;Third Party Advisory
https://forums.ivanti.com/s/article/Security-Alert-CVE-2021-30497-Directory-Traversal-Vulnerability?language=en_US

Security Alert - CVE-2021-30497 - Directory Traversal Vulnerability
Patch;Vendor Advisory
https://help.ivanti.com/wl/help/en_us/aod/5.4/Avalanche/Console/Launching_the_Avalanche.htm

Logging In to the Avalanche Console
Vendor Advisory

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Vulnerability Details : CVE-2021-30497

Products affected by CVE-2021-30497

Exploit prediction scoring system (EPSS) score for CVE-2021-30497

CVSS scores for CVE-2021-30497

CWE ids for CVE-2021-30497

References for CVE-2021-30497