CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in ProFTPD up to 1.3.5a/1.3.6rc1 (File Transfer Software). Affected is an unknown code of the file mod_tls.c of the component mod_tls. The manipulation with an unknown input leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
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 cause a weaker than intended Diffie-Hellman (DH) key to be used and consequently allow attackers to have unspecified impact via unknown vectors.
The weakness was shared 04/05/2016 (Website). The advisory is shared for download at bugs.proftpd.org. This vulnerability is traded as CVE-2016-3125 since 03/11/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1211.
The vulnerability scanner Nessus provides a plugin with the ID 90042 (Fedora 23 : proftpd-1.3.5b-1.fc23 (2016-977d57cf2d)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.
Upgrading to version 1.3.5b or 1.3.6rc2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:
if (use_pkeylen) { keylen = pkeylen;
The vulnerability is also documented in the vulnerability database at Tenable (90042).
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: 7pk securityCWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 90042
Nessus Name: Fedora 23 : proftpd-1.3.5b-1.fc23 (2016-977d57cf2d)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 867773
OpenVAS Name: Fedora Update for proftpd FEDORA-2016-977
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: ProFTPD 1.3.5b/1.3.6rc2
Patch: github.com
Timeline
03/11/2016 🔍03/11/2016 🔍
03/20/2016 🔍
03/21/2016 🔍
04/05/2016 🔍
04/05/2016 🔍
04/05/2016 🔍
04/06/2016 🔍
04/06/2016 🔍
07/12/2022 🔍
Sources
Advisory: FEDORA-2016-977d57cf2dStatus: Not defined
Confirmation: 🔍
CVE: CVE-2016-3125 (🔍)
Vulnerability Center: 57940 - ProFTPD Remote Unspecified Vulnerability due to Issue in TLSDHParamFile, Medium
SecurityFocus: 84327 - ProFTPD CVE-2016-3125 Diffie Hellman Key Exchange Security Bypass Vulnerability
Entry
Created: 04/06/2016 12:21Updated: 07/12/2022 09:23
Changes: 04/06/2016 12:21 (72), 02/03/2019 10:49 (12), 07/12/2022 09:23 (4)
Complete: 🔍
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