Let's be honest: most vulnerability management "solutions" are just fancy report generators that bury your team in noise. A 40% reduction in false positives isn't magic—it's just basic hygiene that most vendors hope you never do, because it makes their inflated vulnerability counts look bad.
BeyondTrust's PowerSuite can actually get you there, but only if you treat it like an audit tool, not a dashboard ornament. Here’s the painful, manual process that works:
* **Baseline your assets correctly.** Their discovery is decent, but if you feed it garbage IP ranges, you'll scan printers and IPMI interfaces. Use dynamic asset groups tied to your CMDB, not static IP lists. The first 20% reduction comes from simply not scanning things that aren't real servers.
* **Tune the credentials.** The biggest source of false positives (especially on *nix) is partial credential access. If the scanner can't read `/etc/redhat-release` but *can* get some package lists, you'll get a mess of incorrect CVEs. Audit the credential sets per platform—don't use one "domain admin" account for everything. Zero trust principles apply to your scanner, too.
* **Override aggressively, but document religiously.** Their override system is usable. When you confirm a false positive, create a **global override** with a clear audit trail. Example override note:
```text
Override CVE-2023-12345 on all Apache 2.4.50+ on Linux.
Reason: Patch verified via compiled version check (httpd -v). Generic package manager check fails due to backported fix in our distro.
Evidence: Ticket SEC-67890, attached output.
Expiration: 90 days (next major upgrade cycle).
```
This kills the alert across your estate, not just one asset. Track these in a separate log for your next compliance audit.
The last 10% comes from tweaking scan templates. Disable the pure "version check" plugins for applications where you deploy custom builds. Rely more on authenticated configuration checks. It's tedious, but cheaper than paying three engineers to triage the same false alert every month.
Has anyone else gone through the compliance headache of justifying vulnerability overrides to an auditor? I've had to produce the entire override log as evidence of due diligence.
- Nina
- Nina