Ttyplus MTPutty 1.0.1.21 SSH Connection Password insufficiently protected credentials

Summaryinfo

A vulnerability was found in Ttyplus MTPutty 1.0.1.21. It has been classified as problematic. The affected element is an unknown function of the component SSH Connection Password Handler. Performing a manipulation results in insufficiently protected credentials. This vulnerability is known as CVE-2021-47759. Attacking locally is a requirement. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in Ttyplus MTPutty 1.0.1.21. This affects an unknown code block of the component SSH Connection Password Handler. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. CWE is classifying the issue as CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. This is going to have an impact on confidentiality. The summary by CVE is:

MTPutty 1.0.1.21 contains a sensitive information disclosure vulnerability that allows local attackers to view SSH connection passwords through Windows PowerShell process listing. Attackers can run a PowerShell command to retrieve the full command line of MTPutty processes, exposing plaintext SSH credentials.

The weakness was published by Sedat Ozdemir as 50574. The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2021-47759 since 01/10/2026. The exploitability is told to be easy. An attack has to be approached locally. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Connectivity Software

Vendor

• Ttyplus

Name

• MTPutty

Version

• 1.0.1.21

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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