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CVE Record

CVE-2020-28046: An issue was discovered in ProlinOS through 2.4.161.8859R.

An issue was discovered in ProlinOS through 2.4.161.8859R. An attacker with local code execution privileges as a normal user (MAINAPP) can escalate to root privileges by exploiting the setuid installation of the xtables-multi binary and leveraging the ip6tables --modprobe switch.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-28046 is a local privilege escalation in ProlinOS through 2.4.161.8859R. A user who can already run code as the normal MAINAPP account may be able to gain root privileges. This is serious for exposed kiosks, terminals, or appliances where local code execution is plausible.

Executive priority

Prioritize affected ProlinOS deployments where local access or application-level code execution is realistic. This is not presented as a remote internet-wide issue, but successful exploitation could fully compromise an affected host.

Technical view

The issue involves a setuid installation of xtables-multi and use of the ip6tables --modprobe behavior to escalate from MAINAPP-level local code execution to root. The public CVE data does not provide CVSS, CWE, patch version, or broad product metadata beyond ProlinOS through 2.4.161.8859R.

Likely exposure

Exposure appears limited to ProlinOS systems through version 2.4.161.8859R, especially where untrusted users or applications can obtain local MAINAPP code execution. The source bundle does not identify other affected products or CPEs.

Exploitation context

The CVE description requires local code execution as MAINAPP before escalation. CISA KEV is false in the supplied data, and the sources do not support claiming active exploitation. A public reference exists, but the bundle does not establish real-world exploitation.

Researcher notes

Evidence is sparse. The CVE record gives the core precondition, affected version ceiling, and privilege escalation mechanism, but lacks CVSS, CWE, fixed version, and vendor remediation details. Avoid broad product assumptions beyond ProlinOS through 2.4.161.8859R.

Mitigation direction

  • Inventory ProlinOS systems and identify versions through 2.4.161.8859R.
  • Check vendor or maintainer guidance for a fixed build or approved workaround.
  • Restrict untrusted local code execution paths to MAINAPP or equivalent users.
  • Review whether xtables-multi setuid exposure can be safely removed per vendor guidance.
  • Prioritize containment where local access by untrusted users is possible.

Validation and detection

  • Confirm the installed ProlinOS version on potentially affected systems.
  • Review whether xtables-multi is installed with setuid root behavior.
  • Assess whether MAINAPP or similar local execution is reachable by untrusted users.
  • Check security logs for unexpected privilege changes or root-level activity.
  • Track vendor advisories because the supplied sources do not name a fixed version.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2020-28046 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.