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CVE Record

CVE-2020-10123: The currency dispenser of NCR SelfSev ATMs running APTRA XFS 05.01.00 or earlier does not adequately authen...

The currency dispenser of NCR SelfSev ATMs running APTRA XFS 05.01.00 or earlier does not adequately authenticate session key generation requests from the host computer, allowing an attacker with physical access to internal ATM components to issue valid commands to dispense currency by generating a new session key that the attacker knows.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This issue affects some NCR SelfServ ATMs using APTRA XFS 05.01.00 or earlier. With physical access inside the ATM, an attacker could make the cash dispenser accept commands by creating a session key they know. The business risk is direct cash loss at exposed machines, but the source bundle does not show remote exploitation.

Executive priority

Treat as high priority for ATM operators because successful abuse can directly dispense cash. Prioritize exposed NCR SelfServ fleets, field-service access controls, and vendor update status.

Technical view

The currency dispenser does not adequately authenticate host-originated session key generation requests. An attacker with physical access to internal ATM components may generate a known session key and issue valid dispense commands. The bundle maps the weakness to CWE-305 and identifies NCR SelfServ ATMs running APTRA XFS 05.01.00 or earlier as affected.

Likely exposure

Exposure is likely limited to organizations operating NCR SelfServ ATMs with APTRA XFS 05.01.00 or earlier, especially machines where internal components can be physically accessed or tampered with.

Exploitation context

CISA KEV status is false in the provided bundle. The sources do not confirm active exploitation of this CVE. Exploitation requires physical access to internal ATM components, which reduces scale but increases urgency for cash-handling environments.

Researcher notes

Evidence is clear on affected product, version boundary, access requirement, and impact. The bundle lacks CVSS details and does not prove active exploitation. Avoid assuming broader NCR product impact beyond SelfServ ATMs running APTRA XFS 05.01.00 or earlier.

Mitigation direction

  • Inventory NCR SelfServ ATMs and identify APTRA XFS versions.
  • Apply NCR guidance and security updates for affected APTRA XFS deployments.
  • Restrict and monitor physical access to ATM internal components.
  • Review NCR dispenser security guidance for applicable compensating controls.

Validation and detection

  • Confirm no deployed NCR SelfServ ATM runs APTRA XFS 05.01.00 or earlier.
  • Verify NCR-recommended updates or dispenser security controls are installed.
  • Inspect physical tamper controls and access logs for exposed ATMs.
  • Review incident records for unexplained dispense events or service-panel access.
Prepared
Confidence
medium
Sources
4

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-305: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2020-10123 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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
7Source links

CVSS and timeline data

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

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
NCRSelfServ ATMAPTRA XFSListed
Weakness

CWE details

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

CWE-305 · source CWE mapping

Authentication Bypass by Primary Weakness

Authentication Bypass by Primary Weakness represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.