7.5
HIGH
CVE-2023-6337
HashiCorp Vault HTTP Request Denial of Service (DoS)
Description

HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash. Fixed in Vault 1.15.4, 1.14.8, 1.13.12.

INFO

Published Date :

Dec. 8, 2023, 10:15 p.m.

Last Modified :

Jan. 12, 2024, 2:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2023-6337 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-6337 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 Hashicorp vault
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-2023-6337.

URL Resource
https://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741 Vendor Advisory
https://security.netapp.com/advisory/ntap-20240112-0006/

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).

HCSEC-2023-34 Example

Go

Updated: 11 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Dec. 9, 2023, 2:35 a.m. This repo has been linked 1 different CVEs too.

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

The following list is the news that have been mention CVE-2023-6337 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-6337 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
  • CVE Modified by [email protected]

    Jan. 12, 2024

    Action Type Old Value New Value
    Added Reference HashiCorp Inc. https://security.netapp.com/advisory/ntap-20240112-0006/ [No types assigned]
  • Initial Analysis by [email protected]

    Dec. 13, 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://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741 No Types Assigned https://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741 Vendor Advisory
    Added CWE NIST CWE-770
    Added CPE Configuration OR *cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* versions up to (including) 1.12.0 *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions up to (including) 1.12.0 *cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.12 *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.12 *cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* versions from (including) 1.14.0 up to (excluding) 1.14.8 *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions from (including) 1.14.0 up to (excluding) 1.14.8 *cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:* versions from (including) 1.15.0 up to (excluding) 1.15.4 *cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:* versions from (including) 1.15.0 up to (excluding) 1.15.4
  • CVE Received by [email protected]

    Dec. 08, 2023

    Action Type Old Value New Value
    Added Description HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash. Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
    Added Reference HashiCorp Inc. https://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741 [No types assigned]
    Added CWE HashiCorp Inc. CWE-770
    Added CVSS V3.1 HashiCorp Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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-2023-6337 is associated with the following CWEs:

Exploit Prediction

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

0.06 }} 0.01%

score

0.24089

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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User Interaction
Scope
Confidentiality
Integrity
Availability