CVE-2020-15694

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
In Nim 1.2.4, the standard library httpClient fails to properly validate the server response. For example, httpClient.get().contentLength() does not raise any error if a malicious server provides a negative Content-Length.
Overview
  • CVE ID
  • CVE-2020-15694
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-08-14T19:15:12
  • Last Modified Date
  • 2021-02-08T20:39:36
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:nim-lang:nim:*:*:*:*:*:*:*:* 1 OR 1.2.6
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.html Release Notes Third Party Advisory
https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L241 Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/04/2 Exploit Mailing List Third Party Advisory
https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection/ Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-15694
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15694
History
Created Old Value New Value Data Type Notes
2022-05-10 07:23:58 Added to TrackCVE
2022-12-04 21:04:03 2020-08-14T19:15Z 2020-08-14T19:15:12 CVE Published Date updated
2022-12-04 21:04:03 2021-02-08T20:39:36 CVE Modified Date updated
2022-12-04 21:04:03 Analyzed Vulnerability Status updated