Exim Spool Header File injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Exim. The impacted element is an unknown function of the component Spool Header File Handler. The manipulation leads to injection. This vulnerability is listed as CVE-2020-28021. The attack may be initiated remotely. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Exim (Mail Server Software) (affected version not known) and classified as critical. This issue affects some unknown functionality of the component Spool Header File Handler. The manipulation with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is integrity, and availability.

The weakness was presented 05/06/2021. The advisory is shared at qualys.com. The identification of this vulnerability is CVE-2020-28021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1055 for this issue.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
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: Injection
CWE: CWE-74 / CWE-707 / CWE-20
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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/30/2020 🔍
05/06/2021 +187 days 🔍
05/06/2021 +0 days 🔍
05/09/2021 +3 days 🔍

Sourcesinfo

Advisory: qualys.com
Status: Confirmed

CVE: CVE-2020-28021 (🔍)
GCVE (CVE): GCVE-0-2020-28021
GCVE (VulDB): GCVE-100-174533

Entryinfo

Created: 05/06/2021 09:36
Updated: 05/09/2021 08:36
Changes: 05/06/2021 09:36 (36), 05/09/2021 08:36 (5)
Complete: 🔍
Cache ID: 216::103

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