CVE-2020-23533 Weak cryptography in n/a
Attackers can bypass payment verification and shop for free by exploiting a NULL secret key in the cryptographic signature generation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-23533?
CVE-2020-23533 is a high-severity vulnerability in n/a, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Union Pay up to 1.2.0, for web based versions contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability, allows attackers to shop for free in merchants' websites and mobile apps, via a crafted authentication code (MAC) which is generated based on a secret key which is NULL.
Weakness: CWE-347
Which versions are affected by CVE-2020-23533?
It affects 1 product.
Products include Unionpayintl Union Pay.
How do I fix CVE-2020-23533?
No fix has been published for CVE-2020-23533 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-23533 being exploited?
There is no known exploitation of CVE-2020-23533 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-chw7-q7hh-9vc2.