THREATPORT/VULNERABILITY/CVE-2020-20277
CRITICAL SEVERITY

CVE-2020-20277

Uftpd vulnerability

CVSS
9.8
EPSS
25.2%
EPSS pct
98th
Exploited
No known
There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution.
Affected vendor
Troglobit
Affected product
Uftpd
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2020-12-18

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, high impact to integrity, high impact to availability.

Its EPSS score of 25.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2020-20277

  • Confirm whether Troglobit Uftpd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-20277.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-20277

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-20277 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2020-20277?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2020-20277.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL
CVE-2009-2382
Phpmyblockchecker vulnerability
CRITICAL
CVE-2009-2422
Ruby On Rails vulnerability
CRITICAL
CVE-2009-2494
Windows 2000 vulnerability