Vulnerability Report

CVE-2023-38545

Title: Netapp Oncommand Workflow Automation RCE

Memory Corruption

Proof Of Concept

PoC Available for CVE-2023-38545

CWE Category CWE-787
Published Date Oct 18, 2023
Modified Date May 12, 2026
Exploit Status Available
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
26.75%

Vulnerability Summary

CVE-2023-38545: This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that host name can be is 255 bytes. If the host name is detected to be longer, curl switches to local name resolving and instead passes on the resolved address only. Due to this bug, the local variable that means "let the host resolve the name" could get the wrong value during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target buffer instead of copying just the resolved address there. The target buffer being a heap based buffer, and the host name coming from the URL that curl has been told to operate with.

Impacted Vendors

H
haxx 1
L
libcurl 1
N
netapp 3

Reference Links

http://seclists.org/fulldisclosure/2024/Jan/34 http://seclists.org/fulldisclosure/2024/Jan/37 http://seclists.org/fulldisclosure/2024/Jan/38 https://curl.se/docs/CVE-2023-38545.html https://forum.vmssoftware.com/viewtopic.php?f=8&t=8868 https://lists.fedoraproject.org/archives/list/[email protected]/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ https://security.netapp.com/advisory/ntap-20231027-0009/ https://security.netapp.com/advisory/ntap-20240201-0005/ https://support.apple.com/kb/HT214036 https://support.apple.com/kb/HT214057 https://support.apple.com/kb/HT214058 https://support.apple.com/kb/HT214063 https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/ http://seclists.org/fulldisclosure/2024/Jan/34 http://seclists.org/fulldisclosure/2024/Jan/37 http://seclists.org/fulldisclosure/2024/Jan/38 https://curl.se/docs/CVE-2023-38545.html https://forum.vmssoftware.com/viewtopic.php?f=8&t=8868 https://lists.fedoraproject.org/archives/list/[email protected]/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ https://security.netapp.com/advisory/ntap-20231027-0009/ https://security.netapp.com/advisory/ntap-20240201-0005/ https://support.apple.com/kb/HT214036 https://support.apple.com/kb/HT214057 https://support.apple.com/kb/HT214058 https://support.apple.com/kb/HT214063 https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/ https://github.com/UTsweetyfish/CVE-2023-38545 https://github.com/bcdannyboy/CVE-2023-38545 https://github.com/dbrugman/CVE-2023-38545-POC
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-38545 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/d0rb/CVE-2023-38545
View Code
GitHub https://github.com/UTsweetyfish/CVE-2023-38545
View Code
GitHub https://github.com/imfht/CVE-2023-38545
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.