CVE-2017-7418: proftpd
Vulnerability summary
CVE-2017-7418 is a medium (CVSS 5.5) vulnerability in proftpd. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 04-04-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
ProFTPD before 1.3.5e and 1.3.6 before 1.3.6rc5 controls whether the home directory of a user could contain a symbolic link through the AllowChrootSymlinks configuration option, but checks only the last path component when enforcing AllowChrootSymlinks. Attackers with local access could bypass the AllowChrootSymlinks control by replacing a path component (other than the last one) with a symbolic link. The threat model includes an attacker who is not granted full filesystem access by a hosting provider, but can reconfigure the home directory of an FTP user.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.44% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- proftpd-dfsg< 1.3.5b-4
Mageia1 product
- proftpd< 1.3.5e-1.mga5
Proftpd1 product
- proftpdEOL≤ 1.3.5 | 1.3.6 | 1.3.6:rc1 | 1.3.6:rc2 | 1.3.6:rc3 | 1.3.6:rc4
Ubuntu1 product
- proftpd-dfsgAll versions (No fix recorded)
4 vendors · 4 products
References
14 links- github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4edX Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
- github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579fX Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
- github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryREPORT
