CVE-2023-32690
Libspdm Unvalidated CTExponent Exposure}
Description
libspdm is a sample implementation that follows the DMTF SPDM specifications. Prior to versions 2.3.3 and 3.0, following a successful CAPABILITIES response, a libspdm Requester stores the Responder's CTExponent into its context without validation. If the Requester sends a request message that requires a cryptography operation by the Responder, such as CHALLENGE, libspdm will calculate the timeout value using the Responder's unvalidated CTExponent. A patch is available in version 2.3.3. A workaround is also available. After completion of VCA, the Requester can check the value of the Responder's CTExponent. If it greater than or equal to 64, then the Requester can stop communication with the Responder.
INFO
Published Date :
June 1, 2023, 5:15 p.m.
Last Modified :
Nov. 21, 2024, 8:03 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2023-32690
.
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).
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The following list is the news that have been mention
CVE-2023-32690
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-32690
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.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/DMTF/libspdm/issues/2068 Added Reference https://github.com/DMTF/libspdm/pull/2069 Added Reference https://github.com/DMTF/libspdm/security/advisories/GHSA-56h8-4gv5-jf2c -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jun. 09, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/DMTF/libspdm/issues/2068 No Types Assigned https://github.com/DMTF/libspdm/issues/2068 Patch Changed Reference Type https://github.com/DMTF/libspdm/pull/2069 No Types Assigned https://github.com/DMTF/libspdm/pull/2069 Patch Changed Reference Type https://github.com/DMTF/libspdm/security/advisories/GHSA-56h8-4gv5-jf2c No Types Assigned https://github.com/DMTF/libspdm/security/advisories/GHSA-56h8-4gv5-jf2c Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:dmtf:libspdm:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-32690
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-2023-32690
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} -0.23%
score
0.36171
percentile