Mozilla Thunderbird up to 68.7.x Unicode Encoding Email Address origin validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mozilla Thunderbird up to 68.7.x. This issue affects some unknown processing of the component Unicode Encoding. The manipulation as part of Email Address leads to origin validation. This vulnerability is referenced as CVE-2020-12397. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Thunderbird up to 68.7.x (Mail Client Software). It has been rated as critical. This issue affects an unknown functionality of the component Unicode Encoding. The manipulation as part of a Email Address leads to a origin validation vulnerability. Using CWE to declare the problem leads to CWE-346. The product does not properly verify that the source of data or communication is valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

By encoding Unicode whitespace characters within the From email header, an attacker can spoof the sender email address that Thunderbird displays. This vulnerability affects Thunderbird < 68.8.0.

The weakness was published 05/22/2020. The identification of this vulnerability is CVE-2020-12397 since 04/28/2020. 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. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/23/2020).

Upgrading to version 68.8.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Origin validation
CWE: CWE-346 / CWE-345
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: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 68.8.0

Timelineinfo

04/28/2020 🔍
05/22/2020 +24 days 🔍
05/23/2020 +1 days 🔍
05/23/2020 +0 days 🔍

Sourcesinfo

Vendor: mozilla.org

Status: Not defined

CVE: CVE-2020-12397 (🔍)
GCVE (CVE): GCVE-0-2020-12397
GCVE (VulDB): GCVE-100-155555

Entryinfo

Created: 05/23/2020 09:30
Updated: 05/23/2020 09:35
Changes: 05/23/2020 09:30 (38), 05/23/2020 09:35 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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