Mozilla Thunderbird up to 68.0 SMIME Message information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mozilla Thunderbird up to 68.0 and classified as problematic. This affects an unknown part of the component SMIME Handler. The manipulation as part of Message leads to information disclosure. This vulnerability is uniquely identified as CVE-2019-11739. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 68.0 (Mail Client Software). It has been rated as problematic. This issue affects an unknown part of the component SMIME Handler. The manipulation as part of a Message leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.

The weakness was disclosed 09/27/2019 as MFSA 2019-29 as confirmed security advisory (Website). The advisory is shared at mozilla.org. The identification of this vulnerability is CVE-2019-11739 since 05/03/2019. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 68.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Thunderbird 68.1

Timelineinfo

05/03/2019 🔍
09/27/2019 +147 days 🔍
09/27/2019 +0 days 🔍
09/28/2019 +1 days 🔍
09/11/2020 +349 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: MFSA 2019-29
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-11739 (🔍)
GCVE (CVE): GCVE-0-2019-11739
GCVE (VulDB): GCVE-100-142397

Entryinfo

Created: 09/28/2019 07:37
Updated: 09/11/2020 09:57
Changes: 09/28/2019 07:37 (62), 09/11/2020 09:57 (1)
Complete: 🔍
Cache ID: 216::103

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