Nim stdlib httpClient does not validate peer certificates by default
CVE-2021-29495

5.9MEDIUM

Key Information:

Vendor

Nim-lang

Status
Security
Vendor
CVE Published:
7 May 2021

What is CVE-2021-29495?

Nim is a statically typed compiled systems programming language. In Nim standard library before 1.4.2, httpClient SSL/TLS certificate verification was disabled by default. Users can upgrade to version 1.4.2 to receive a patch or, as a workaround, set "verifyMode = CVerifyPeer" as documented.

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Affected Version(s)

security < 1.4.2

References

https://github.com/nim-lang/security/security/advisories/...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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