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CVE-2023-45687

Authentication bypass via session fixation in Titan MFT and Titan SFTP servers

HIGH
8.8
CVSS Score
Published: October 16, 2023 at 04:12 PM UTC
Updated: June 17, 2026 at 06:29 AM UTC
4 products affected across 2 vendorsTitan Sftp ServerTitan Mft ServerTitan MFT

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A session fixation vulnerability in South River Technologies' Titan MFT and Titan SFTP servers on Linux and Windows allows an attacker to bypass the server's authentication if they can trick an administrator into authorizating a session id of their choosing

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Titan Mft Server· Southrivertech
95%
v < 2.0.18
Affected range stops below 2.0.18, so it looks safe — our inference, not a vendor statement
Titan Sftp Server· Southrivertech
95%
v < 2.0.18
Affected range stops below 2.0.18, so it looks safe — our inference, not a vendor statement
Titan MFT· South River
60%
v ≤ 2.0.17.2298
Titan SFTP· South River
60%
v ≤ 2.0.17.2298

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://helpdesk.southrivertech.com/portal/en/kb/articles/security-patch-for-issues-cve-2023-45685-through-cve-2023-45690
ExploitThird Party Advisory
Source: [email protected]
https://www.rapid7.com/blog/post/2023/10/16/multiple-vulnerabilities-in-south-river-technologies-titan-mft-and-titan-sftp-fixed/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-384

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