CVE-2023-6935
Here is a potential title: "wolfSSL RSA Static Implementation Timing Attack Vulnerability"
Description
wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSL_STATIC_RSA" The define “WOLFSSL_STATIC_RSA” enables static RSA cipher suites, which is not recommended, and has been disabled by default since wolfSSL 3.6.6. Therefore the default build since 3.6.6, even with "--enable-all", is not vulnerable to the Marvin Attack. The vulnerability is specific to static RSA cipher suites, and expected to be padding-independent. The vulnerability allows an attacker to decrypt ciphertexts and forge signatures after probing with a large number of test observations. However the server’s private key is not exposed.
INFO
Published Date :
Feb. 9, 2024, 11:15 p.m.
Last Modified :
Nov. 7, 2024, 8:41 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2023-6935 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-6935.
| URL | Resource |
|---|---|
| https://people.redhat.com/~hkario/marvin/ | Technical Description |
| https://www.wolfssl.com/docs/security-vulnerabilities/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
wolfssl for windows 98 (coming soon)
CMake Dockerfile Shell C++ C Makefile Euphoria Batchfile BitBake FreeMarker
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-6935 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-6935 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Nov. 07, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://people.redhat.com/~hkario/marvin/ No Types Assigned https://people.redhat.com/~hkario/marvin/ Technical Description Changed Reference Type https://www.wolfssl.com/docs/security-vulnerabilities/ No Types Assigned https://www.wolfssl.com/docs/security-vulnerabilities/ Vendor Advisory Added CWE NIST CWE-203 Added CPE Configuration OR *cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:* versions from (including) 3.12.2 up to (including) 5.6.4 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Received by [email protected]
Feb. 09, 2024
Action Type Old Value New Value Added Description wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSL_STATIC_RSA" The define “WOLFSSL_STATIC_RSA” enables static RSA cipher suites, which is not recommended, and has been disabled by default since wolfSSL 3.6.6. Therefore the default build since 3.6.6, even with "--enable-all", is not vulnerable to the Marvin Attack. The vulnerability is specific to static RSA cipher suites, and expected to be padding-independent. The vulnerability allows an attacker to decrypt ciphertexts and forge signatures after probing with a large number of test observations. However the server’s private key is not exposed. Added Reference wolfSSL Inc. https://people.redhat.com/~hkario/marvin/ [No types assigned] Added Reference wolfSSL Inc. https://www.wolfssl.com/docs/security-vulnerabilities/ [No types assigned] Added CWE wolfSSL Inc. CWE-203 Added CVSS V3.1 wolfSSL Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-6935 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-6935
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.04%
score
0.35638
percentile