HOME VULNERABILITIESCVE-2023-39903

MEDIUM

CVE-2023-39903

CWE-312Published: August 7, 2023· Updated: Jun 17, 2026

5.0

CVSS v3.1

Official Description

An issue was discovered in Fujitsu Software Infrastructure Manager (ISM) before 2.8.0.061. The ismsnap component (in this specific case at /var/log/fujitsu/ServerViewSuite/ism/FirmwareManagement/FirmwareManagement.log) allows insecure collection and storage of authorization credentials in cleartext. That occurs when users perform any ISM Firmware Repository Address setup test (Test the Connection), or regularly authorize against an already configured remote firmware repository site, as set up in ISM Firmware Repository Address. A privileged attacker is therefore able to potentially gather the associated ismsnap maintenance data, in the same manner as a trusted party allowed to export ismsnap data from ISM. The preconditions for an ISM installation to be generally vulnerable are that the Download Firmware (Firmware Repository Server) function is enabled and configured, and that the character \ (backslash) is used in a user credential (i.e., user/ID or password) of the remote proxy host / firmware repository server. NOTE: this may overlap CVE-2023-39379.

Technical Analysis

CVE-2023-39903 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.0.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.Low

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Affected Vendors & Products

fujitsu1 product(s)

software infrastructure manager

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://security.ts.fujitsu.com/IndexDownload.asp?SoftwareGuid=a0131919-6d84-43b4-800e-d7f78200a70f

PATCHhttps://security.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-ISS-IS-2023-071410-Security-Notice.pdf

PATCHhttps://security.ts.fujitsu.com/IndexDownload.asp?SoftwareGuid=a0131919-6d84-43b4-800e-d7f78200a70f

PATCHhttps://security.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-ISS-IS-2023-071410-Security-Notice.pdf

All References (4)

→

https://security.ts.fujitsu.com/IndexDownload.asp?SoftwareGuid=a0131919-6d84-43b4-800e-d7f78200a70fPatch

→

https://security.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-ISS-IS-2023-071410-Security-Notice.pdfPatch · Vendor Advisory

→

https://security.ts.fujitsu.com/IndexDownload.asp?SoftwareGuid=a0131919-6d84-43b4-800e-d7f78200a70fPatch

→

https://security.ts.fujitsu.com/ProductSecurity/content/Fujitsu-PSIRT-ISS-IS-2023-071410-Security-Notice.pdfPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2023-39903

CVSS Score5.0 / 10

SeverityMEDIUM

WeaknessCWE-312

CISA KEVNo

Affected1 vendor(s)

PublishedAug 7, 2023

Related CVEs (CWE-312)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2023-39903 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

← All Vulnerabilities·Search for CVE-2023-39903·NVD