CVE-2020-9324Public exploitNetwork attack vector

Unauthenticated Net-NTLMv2 capture via UNC paths

Published Mar 18, 2020 · Updated Aug 4, 2024

Credential exposure in Aquaforest TIFF Server 4.0 allows remote attackers to capture the service account's Net-NTLMv2 hash via UNC paths. The unauthenticated tiffserverclassic.aspx at_path and tiffpilot.exe FN parameters accept an attacker-controlled UNC path and make the server initiate SMB authentication to that location. Exploitation requires network access to an exposed instance and outbound SMB reachability; it discloses a credential challenge-response hash without altering data or interrupting service.

CVSS severity7.5
High
EPSS probability1.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Aquaforest TIFF Server 4.0 allows remote attackers to capture the service account's Net-NTLMv2 hash via UNC paths. The unauthenticated tiffserverclassic.aspx at_path and tiffpilot.exe FN parameters accept an attacker-controlled UNC path and make the server initiate SMB authentication to that location. Exploitation requires network access to an exposed instance and outbound SMB reachability; it discloses a credential challenge-response hash without altering data or interrupting service.

The record

CVE
CVE-2020-9324
Published
Mar 18, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1187
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1187Forced Authentication

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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