7.6
CWE
326
Advisory Published
Updated

CVE-2020-10125: Weak Encryption

First published: Thu Aug 20 2020(Updated: )

NCR SelfServ ATMs running APTRA XFS 04.02.01 and 05.01.00 implement 512-bit RSA certificates to validate bunch note acceptor (BNA) software updates, which can be broken by an attacker with physical access in a sufficiently short period of time, thereby enabling the attacker to sign arbitrary files and CAB archives used to update BNA software, as well as bypass application whitelisting, resulting in the ability to execute arbitrary code.

Credit: cret@cert.org

Affected SoftwareAffected VersionHow to fix
XFS ACL=04.02.01
XFS ACL=05.01.00
NCR SelfServ ATM

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Frequently Asked Questions

  • What is the severity of CVE-2020-10125?

    CVE-2020-10125 is considered a critical vulnerability due to the potential for physical access attacks on NCR SelfServ ATMs.

  • How do I fix CVE-2020-10125?

    To mitigate CVE-2020-10125, it is recommended to upgrade NCR SelfServ ATMs to a newer version of APTRA XFS that utilizes stronger encryption.

  • What are the affected versions for CVE-2020-10125?

    CVE-2020-10125 affects NCR APTRA XFS versions 04.02.01 and 05.01.00.

  • What type of attack can exploit CVE-2020-10125?

    CVE-2020-10125 can be exploited by attackers with physical access to the ATM, allowing them to sign arbitrary files.

  • Are all NCR SelfServ ATMs vulnerable to CVE-2020-10125?

    Not all NCR SelfServ ATMs are vulnerable; only those running affected versions of APTRA XFS are at risk.

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