Claws Mail 3.14.1 Encryption Message cleartext storage

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Claws Mail 3.14.1 and classified as problematic. Affected is an unknown function of the component Encryption Handler. Such manipulation as part of Message leads to cleartext storage. This vulnerability is listed as CVE-2019-10735. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Claws Mail 3.14.1 (Mail Client Software) and classified as problematic. Affected by this issue is an unknown code of the component Encryption Handler. The manipulation as part of a Message leads to a cleartext storage vulnerability. Using CWE to declare the problem leads to CWE-312. The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere. Impacted is confidentiality. CVE summarizes:

In Claws Mail 3.14.1, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.

The bug was discovered 04/23/2019. The weakness was presented 04/07/2019. This vulnerability is handled as CVE-2019-10735 since 04/03/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1555.

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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cleartext storage
CWE: CWE-312 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/03/2019 🔍
04/07/2019 +4 days 🔍
04/07/2019 +0 days 🔍
04/23/2019 +16 days 🔍
08/27/2023 +1587 days 🔍

Sourcesinfo

Advisory: thewildbeast.co.uk
Status: Not defined

CVE: CVE-2019-10735 (🔍)
GCVE (CVE): GCVE-0-2019-10735
GCVE (VulDB): GCVE-100-133088
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/07/2019 19:31
Updated: 08/27/2023 09:20
Changes: 04/07/2019 19:31 (55), 05/27/2020 08:42 (1), 08/27/2023 09:20 (4)
Complete: 🔍
Cache ID: 216::103

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