CVE-2023-47279VulnerabilityPublished 30 Nov 2023Updated 3 Jun 2025

CVE-2023-47279: Delta Electronics InfraSuite Device Master · Path Traversal

Affects Delta Electronics InfraSuite Device MasterSource CVE Database V5

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 1.1% chance of exploitation in 30 days – higher than 65% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 30 Nov 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Delta Electronics InfraSuite Device Master	Affected =0	Fixed in–

AI-suggested

1. Network Segmentation: Isolate InfraSuite Device Master devices from public networks and restrict access to trusted management networks only. 2. Implement strict firewall rules to block unsolicited UDP traffic to the device, especially from untrusted sources. 3. Monitor network traffic for unusual UDP packets targeting the device to detect potential exploitation attempts. 4. Disable or restrict NTLM authentication where possible, or implement SMB signing and extended protection to mitigate NTLM relay attacks. 5. Regularly audit and review device configurations and access logs for signs of unauthorized access. 6. Engage with Delta Electronics for timely updates or patches addressing this vulnerability; if unavailable, consider compensating controls such as virtual patching via intrusion prevention systems. 7. Employ strong credential management policies, including the use of multi-factor authentication and frequent credential rotation, to limit the impact of credential disclosure. 8. Conduct security awareness training for staff managing these devices to recognize and respond to potential exploitation indicators.

Description

In Delta Electronics InfraSuite Device Master v.1.0.7, A vulnerability exists that allows an unauthenticated attacker to disclose user information through a single UDP packet, obtain plaintext credentials, or perform NTLM relaying.

Impact

For European organizations using Delta Electronics InfraSuite Device Master, this vulnerability could lead to unauthorized disclosure of sensitive user credentials and information, potentially compromising internal network security. The ability to perform NTLM relay attacks could allow attackers to impersonate legitimate users, leading to lateral movement within corporate networks, unauthorized access to critical systems, and data breaches. Since the vulnerability can be exploited remotely without authentication, it increases the attack surface, especially for organizations with devices exposed to less secure network segments or the internet. This could affect industrial control systems, building management, or other infrastructure relying on InfraSuite Device Master, leading to operational disruptions or compliance violations under regulations such as GDPR due to the exposure of personal data. The confidentiality breach could undermine trust and cause financial and reputational damage. Additionally, the exploitation could serve as an entry point for more sophisticated attacks targeting European critical infrastructure or enterprises.

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #6OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks…
Implementation · Input Validation
Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174).
OWASP Cheat Sheets
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.3.1 (opens in a new tab)
Attack patterns
Path Traversal (opens in a new tab)
Using Slashes and URL Encoding Combined to Bypass Validation Logic (opens in a new tab)
Manipulating Web Input to File System Calls (opens in a new tab)
Using Escaped Slashes in Alternate Encoding (opens in a new tab)
Using Slashes in Alternate Encoding (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

cisa.gov/news-events/ics-advisories/icsa-23-331-01 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Jul 2025, 18:42 UTC

WeaknessesCWE-22

Technical details

References

Community reviews

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