Dovecot up to 2.3.14 Submission command injection

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Dovecot up to 2.3.14. It has been classified as critical. This issue affects some unknown processing of the component Submission Handler. The manipulation leads to command injection. This vulnerability is referenced as CVE-2021-33515. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Dovecot up to 2.3.14 (Mail Server Software) and classified as critical. This issue affects an unknown code block of the component Submission Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The weakness was published 06/28/2021. The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2021-33515. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 276380 (TencentOS Server 3: dovecot (TSSA-2022:0239)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.3.15 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (276380). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 276380
Nessus Name: TencentOS Server 3: dovecot (TSSA-2022:0239)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Dovecot 2.3.15

Timelineinfo

05/24/2021 🔍
06/28/2021 +35 days 🔍
06/28/2021 +0 days 🔍
11/23/2025 +1609 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-33515 (🔍)
GCVE (CVE): GCVE-0-2021-33515
GCVE (VulDB): GCVE-100-177665

Entryinfo

Created: 06/28/2021 18:21
Updated: 11/23/2025 01:31
Changes: 06/28/2021 18:21 (38), 07/03/2021 06:47 (6), 11/23/2025 01:31 (30)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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