CVE-2023-28818

Rogue Collector installation via unsigned upgrade files

Published Mar 24, 2023 · Updated Feb 19, 2025

Improper signature verification in Veritas NetBackup IT Analytics 11.0 and 11.1 allows attackers to deploy rogue Collector files. The upgrade process accepts aptare.jar or upgrademanager.zip from the Portal server without verifying their authenticity before collectors install them. Administrative or root access to the Portal server is required, and exploitation causes collectors to install attacker-supplied code.

CVSS severity5.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper signature verification in Veritas NetBackup IT Analytics 11.0 and 11.1 allows attackers to deploy rogue Collector files. The upgrade process accepts aptare.jar or upgrademanager.zip from the Portal server without verifying their authenticity before collectors install them. Administrative or root access to the Portal server is required, and exploitation causes collectors to install attacker-supplied code.

The record

CVE
CVE-2023-28818
Published
Mar 24, 2023
Updated
Feb 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-494, CWE-347, T1195.002
Attack vector
Unavailable
Privileges
admin

Timeline

How it unfolded

  1. Mar 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3VeritasCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
CWE-347Improper Verification of Cryptographic Signature
T1195.002Compromise Software Supply Chain

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo