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GitHub Advisory DatabaseGHSA-4F68-49QQ-H392

HistoryMay 24, 2021 - 6:12 p.m.

Improper certificate validation in em-imap

2021-05-2418:12:20

CWE-295

GitHub Advisory Database

github.com

em-imap

certificate validation

eventmachine

tls server

security vulnerability

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS

0.002

Percentile

58.5%

JSON

em-imap 0.5 and earlier use the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.

Affected configurations

Vulners

Node

em-imap_projectem-imapRange≤0.5

VendorProductVersionCPE
em-imap_projectem-imap*cpe:2.3:a:em-imap_project:em-imap:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
em-imap_project	em-imap	*	cpe:2.3:a:em-imap_project:em-imap::::::::

References

github.com/advisories/GHSA-4f68-49qq-h392

github.com/ConradIrwin/em-imap/issues/25

nvd.nist.gov/vuln/detail/CVE-2020-13163

securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

7.4

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS

0.002

Percentile

58.5%

JSON

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