PT-2020-14588 · Nim+1 · Nim+1

Tintinweb · Published 2020-08-14 · Updated 2024-06-15 · CVE-2020-15693

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Nim version 1.2.4

Description The standard library httpClient in Nim is susceptible to a CR-LF injection in the target URL. This injection can occur if an attacker controls any part of the URL provided in a call, such as httpClient.get or httpClient.post, the User-Agent header value, or custom HTTP header names or values.

Recommendations For Nim version 1.2.4, consider restricting the use of the httpClient module until a patch is available, and avoid using user-controlled input in the URL, User-Agent header, or custom HTTP headers to minimize the risk of exploitation.

Exploit

Fix

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

ALT-PU-2020-3173

CVE-2020-15693

OPENSUSE-SU-2022:10095-1

OPENSUSE-SU-2022:10101-1

OPENSUSE-SU-2024:12253-1

Affected Products

Alt Linux

Nim

References · 35

• 🔥 http://openwall.com/lists/oss-security/2021/02/04/2 · Exploit
• 🔥 https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection · Exploit
• https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L1023 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-15693 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-15693 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-15693 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-15693 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-15693 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-15693 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:10095-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12253-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-15693 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:10101-1 · Vendor Advisory
• https://lists.opensuse.org/archives/list/[e-mail]/thread/HM5F2H5AWO4WRQSTOWMODGKMXAHHBVRH · Note
• https://suse.com/security/cve/CVE-2020-15690 · Note