CVE-2021-42125

published 2021-12-07

CVE-2021-42125: An unrestricted file upload vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to write dangerous…

Priority P2 74 high 8.8 CVSS 3.1

AV N AC L PR L UI N S U C H I H A H

An unrestricted file upload vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to write dangerous files.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
ivanti	avalanche	< 6.3.3	6.3.3

Detection & IOCs extracted from sources · hover to see the quote

• → Vulnerability class is unrestricted file upload (CWE-434) combined with deserialization (CWE-502) via the Inforail Service in Ivanti Avalanche before 6.3.3; monitor for unexpected file writes through the Inforail Service endpoint. ↗

• · Exploitation requires the attacker to already have access to the Inforail Service; scope of exposure depends on network segmentation of that service. ↗
• · The vulnerability is patched in Ivanti Avalanche 6.3.3 and later; versions before 6.3.3 are affected. ↗

CVSS provenance

nvd v3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.5 MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:P

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CWE-502 CWE-434