CVE-2019-12815: An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for remote code execution and information disclosure without
Noroxi assessment
Priority: Plan (action score 56/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 57.6% (FIRST EPSS); higher than 99% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: proftpd-dfsg (Debian:10) 1.3.6-4+deb10u1; proftpd-dfsg (Debian:12) 1.3.6-6; proftpd-dfsg (Debian:8) 1.3.5e+r1.3.5-2+deb8u3.
- Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Add it to your regular patch cycle. Upgrade to proftpd-dfsg (Debian:10) 1.3.6-4+deb10u1; proftpd-dfsg (Debian:12) 1.3.6-6; proftpd-dfsg (Debian:8) 1.3.5e+r1.3.5-2+deb8u3 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for remote code execution and information disclosure without authentication, a related issue to CVE-2015-3306.
- Published
- Jul 19, 2019
- Updated
- Jun 16, 2026
- EPSS
- 57.6% · 99th percentile
- CWE
- CWE-755
Report tools
Action score
56
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 17 / 30 · 57.6%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| proftpd | proftpd | cpe:2.3:a:proftpd:proftpd |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| siemens | simatic cp 1543-1 firmware | cpe:2.3:o:siemens:simatic_cp_1543-1_firmware |
| siemens | simatic cp 1543-1 | cpe:2.3:h:siemens:simatic_cp_1543-1 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux10.0
- debian debian linux8.0
- debian debian linux9.0
- fedoraproject fedora29
- fedoraproject fedora30
- proftpd proftpdup to 1.3.5b inclusive
- siemens simatic cp 1543-1 firmware2.0 and later · before 2.2
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | proftpd-dfsg | before 1.3.6-4+deb10u1 | 1.3.6-4+deb10u1 |
| Debian:12 | proftpd-dfsg | before 1.3.6-6 | 1.3.6-6 |
| Debian:8 | proftpd-dfsg | before 1.3.5e+r1.3.5-2+deb8u3 | 1.3.5e+r1.3.5-2+deb8u3 |
| Debian:9 | proftpd-dfsg | before 1.3.5b-4+deb9u1 | 1.3.5b-4+deb9u1 |
| openSUSE:Leap 15.0 | proftpd | before 1.3.5e-bp150.3.3.1 | 1.3.5e-bp150.3.3.1 |
| openSUSE:Leap 15.1 | proftpd | before 1.3.6b-bp151.4.6.2 | 1.3.6b-bp151.4.6.2 |
| openSUSE:Tumbleweed | proftpd | before 1.3.6e-1.10 | 1.3.6e-1.10 |
| SUSE:Package Hub 15 | proftpd | before 1.3.6b-bp151.4.6.2 | 1.3.6b-bp151.4.6.2 |
| SUSE:Package Hub 15 | proftpd | before 1.3.5e-bp150.3.3.1 | 1.3.5e-bp150.3.3.1 |
| SUSE:Package Hub 15 SP1 | proftpd | before 1.3.5e-bp151.4.3.1 | 1.3.5e-bp151.4.3.1 |
Same product
proftpd: all recordsOther highest-scoring records for the same primary product.
- CVE-2015-3306The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.KEV100Now
- CVE-2010-4221Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to exe67This week
- CVE-2010-20103ProFTPD 1.3.3c Backdoor Command Execution60This week
Published before and after this one in the same product
- ← EarlierCVE-2016-3125Apr 5, 2016 · The mod_tls module in ProFTPD before 1.3.5b and 1.3.6 before 1.3.6rc2 does not properly handle the TLSDHParamFile directive, which might cau32Monitor
- ← EarlierCVE-2017-7418Apr 4, 2017 · 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 Allo22Monitor
- Later →CVE-2019-18217Oct 21, 2019 · ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long c36Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:proftpd-dfsg | 1.3.6-6 · Debian:12 | Package registry (OSV) |
| opensuse:proftpd | 1.3.5e-bp150.3.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| suse:proftpd | 1.3.5e-bp150.3.3.1 · SUSE:Package Hub 15 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:6 | 2019-07-27 |
| Proof-of-concept repository on GitHub | stars:0 | 2020-08-25 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+7 d
- TodayOct 29, 2026+2659 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-20-633 · Aug 24, 2020(Proftpd Sunucu Güvenlik Güncellemesi)
- TR-20-080 · Feb 11, 2020(Siemens Endüstriyel Ürünler Zafiyeti)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-755 · Improper Handling of Exceptional ConditionsCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (13 more)Show less
- lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html
- www.securityfocus.com/bid/109339
- cert-portal.siemens.com/productcert/pdf/ssa-940889.pdf
- github.com/proftpd/proftpd/pull/816
- lists.debian.org/debian-lts-announce/2019/08/msg00006.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OJDQ3XUYWO42TJBO53NUWDZRA35QMVEI/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XM5FPBAGSIKV6YJZEPM6GPGJO5JFT7XU/
- seclists.org/bugtraq/2019/Aug/3
- security.gentoo.org/glsa/201908-16
- tbspace.de/cve201912815proftpd.html
- www.debian.org/security/2019/dsa-4491
- seclists.org/fulldisclosure/2024/Aug/35
Vendor advisories and official records. Exploit/PoC links are deliberately left out.