CVE-2023-45236

Description

EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
• v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Trends

Current EPSS score: 0.41%• Percentile: 62%

Techniques & Countermeasures

• CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

  The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

• CWE-338•Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

  The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.

Affected Systems

• tianocore•edk2

  edk2-stable202308 | ≤ 202311

References (4)

• https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h
• http://www.openwall.com/lists/oss-security/2024/01/16/2
• https://security.netapp.com/advisory/ntap-20240307-0011/
• https://www.kb.cert.org/vuls/id/132380