|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability was found in Dovecot up to 2.3.14 (Mail Server Software). It has been classified as critical. Affected is some unknown processing of the component OAuth2 Authentication Handler. The manipulation with an unknown input leads to a directory traversal vulnerability. CWE is classifying the issue as CWE-22. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.
The weakness was released 06/28/2021. The advisory is available at openwall.com. This vulnerability is traded as CVE-2021-29157 since 03/25/2021. The exploitability is told to be difficult. Local access is required to approach this attack. Required for exploitation is a authentication. The technical details are unknown and an exploit is not available.
Upgrading to version 2.3.15 eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9
VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: Directory traversal
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔒
Upgrade: Dovecot 2.3.15
Timeline03/25/2021 CVE assigned
06/28/2021 +94 days Advisory disclosed
06/28/2021 +0 days VulDB entry created
07/03/2021 +5 days VulDB last update
CVE: CVE-2021-29157 (🔒)
EntryCreated: 06/28/2021 06:21 PM
Updated: 07/03/2021 07:09 AM
Changes: (19) vulnerability_cvss2_nvd_basescore vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_nvd_basescore vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a source_cve_cna
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