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Z10Pr D16 Firmware CVE-2021-28205

MEDIUM
Path Traversal (CWE-22)
2021-04-06 twcert@cert.org.tw
Path Traversal Z10Pr D16 Firmware Asmb8 Ikvm Firmware Z10Pe D16 Ws Firmware Asus
4.9
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-22
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 4.9 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could access files and directories outside the intended path by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.9% exploitation probability (EPSS)

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AnalysisAI

The specific function in ASUS BMC’s firmware Web management page (Delete SOL video file function) does not filter the specific parameter. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. The specific function in ASUS BMC’s firmware Web management page (Delete SOL video file function) does not filter the specific parameter. As obtaining the administrator permission, remote attackers can use the means of path traversal to access system files. Affected products include: Asus Z10Pr-D16 Firmware, Asus Asmb8-Ikvm Firmware, Asus Z10Pe-D16 Ws Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 4.9 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

DescriptionNVD

The specific function in ASUS BMC’s firmware Web management page (Delete SOL video file function) does not filter the specific parameter. As obtaining the administrator permission, remote attackers can use the means of path traversal to access system files.

Threat Intelligence Overview

EPSS Score
1.9%
Top 23% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.9%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Affected Products (CPE)NVD

cpe:2.3:o:asus:z10pr-d16_firmware:1.14.51:*:*:*:*:*:*:*
cpe:2.3:o:asus:asmb8-ikvm_firmware:1.14.51:*:*:*:*:*:*:*
cpe:2.3:o:asus:z10pe-d16_ws_firmware:1.14.2:*:*:*:*:*:*:*

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The SMTP configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by

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The specific function in ASUS BMC’s firmware Web management page (Modify user’s information function) does not verify th
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The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the stri
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The specific function in ASUS BMC’s firmware Web management page (ActiveX configuration-2 acquisition) does not verify t
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The specific function in ASUS BMC’s firmware Web management page (ActiveX configuration-1 acquisition) does not verify t
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The Active Directory configuration function in ASUS BMC’s firmware Web management page does not verify the string length
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The specific function in ASUS BMC’s firmware Web management page (Web License configuration setting) does not verify the
CVE-2021-28182 MEDIUM
4.9 Apr 06

The Web Service configuration function in ASUS BMC’s firmware Web management page does not verify the string length ente
CVE-2021-28181 MEDIUM
4.9 Apr 06

The specific function in ASUS BMC’s firmware Web management page (Remote video configuration setting) does not verify th
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The specific function in ASUS BMC’s firmware Web management page (Audit log configuration setting) does not verify the s

Same weakness CWE-22 – Path Traversal

View all
CVE-2019-3396 CRITICAL POC
9.8
CVE-2019-19781 CRITICAL POC
9.8
CVE-2020-5902 CRITICAL POC
9.8
CVE-2021-21972 CRITICAL POC
9.8
CVE-2021-40444 HIGH POC
8.8
CVE-2022-41352 CRITICAL POC
9.8
CVE-2021-27065 HIGH POC
7.8
CVE-2019-11510 CRITICAL POC
10.0

Same technique Path Traversal

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CVE-2018-20250 HIGH POC
7.8
CVE-2022-37042 CRITICAL POC
9.8
CVE-2025-64446 CRITICAL POC
9.8

References

Advisories & patches
ADVISORY https://www.asus.com/content/ASUS-Product-Security-Advisory/ ADVISORY https://www.asus.com/tw/support/callus/ REF https://www.twcert.org.tw/tw/cp-132-4575-2e32d-1.html

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