THREATPORT/VULNERABILITY/CVE-2021-40330
HIGH SEVERITY

CVE-2021-40330

Git vulnerability

CVSS
7.5
EPSS
3.1%
EPSS pct
86th
Exploited
No known
git_connect_git in connect.c in Git before 2.30.1 allows a repository path to contain a newline character, which may result in unexpected cross-protocol requests, as demonstrated by the git://localhost:1234/%0d%0a%0d%0aGET%20/%20HTTP/1.1 substring.
Affected vendor
Git Scm
Affected product
Git
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2021-08-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2021-40330

  • Confirm whether Git Scm Git is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-40330.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-40330

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