CVE-2023-42000

Arcserve Udp path traversal

9.8 CRITICALEPSS 1.47%

Published27 Nov 2023

Description

Arcserve UDP prior to 9.2 contains a path traversal vulnerability in com.ca.arcflash.ui.server.servlet.FileHandlingServlet.doUpload(). An unauthenticated remote attacker can exploit it to upload arbitrary files to any location on the file system where the UDP agent is installed.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Arcserve Udp< 9.2

Remediation

Fixed in

Arcserve Udp≥ 9.2

Frequently asked

Is CVE-2023-42000 being actively exploited?

CVE-2023-42000 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.47%.

How severe is CVE-2023-42000?

CVE-2023-42000 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.47% probability of exploitation.

Which products are affected by CVE-2023-42000?

Affected products include Arcserve Udp.

How do I fix CVE-2023-42000?

Upgrade affected software to a fixed version, for example Arcserve Udp 9.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-42000 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.