5.3
MEDIUM
CVE-2023-32732
gRPC HTTP2 Proxied Header Encoding Error
Description

gRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit in  https://github.com/grpc/grpc/pull/32309 https://www.google.com/url

INFO

Published Date :

June 9, 2023, 11:15 a.m.

Last Modified :

Aug. 2, 2023, 4:43 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-32732 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Grpc grpc
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-2023-32732.

URL Resource
https://github.com/grpc/grpc/pull/32309 Issue Tracking Patch
https://lists.fedoraproject.org/archives/list/[email protected]/message/37IDNVY5AWVH7JDMM2SDTL24ZPPZJNSY/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/VWE44J5FG7THHL7XVEVTNIGEYBNKJBLL/ Mailing List

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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-32732 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-32732 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.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Aug. 02, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/37IDNVY5AWVH7JDMM2SDTL24ZPPZJNSY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/37IDNVY5AWVH7JDMM2SDTL24ZPPZJNSY/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VWE44J5FG7THHL7XVEVTNIGEYBNKJBLL/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VWE44J5FG7THHL7XVEVTNIGEYBNKJBLL/ Mailing List
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 23, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/37IDNVY5AWVH7JDMM2SDTL24ZPPZJNSY/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VWE44J5FG7THHL7XVEVTNIGEYBNKJBLL/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 15, 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:L
    Changed Reference Type https://github.com/grpc/grpc/pull/32309 No Types Assigned https://github.com/grpc/grpc/pull/32309 Issue Tracking, Patch
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:* versions up to (excluding) 1.53.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-32732 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-2023-32732 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.10 }} 0.01%

score

0.42767

percentile

CVSS31 - Vulnerability Scoring System
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