Apache HTTP Server up to 2.4.46 mod_proxy_wstunnel improper authentication

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.2 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Apache HTTP Server up to 2.4.46. The affected element is an unknown function of the component mod_proxy_wstunnel. The manipulation leads to improper authentication. This vulnerability is referenced as CVE-2019-17567. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.
Details
A vulnerability was found in Apache HTTP Server up to 2.4.46 (Web Server) and classified as critical. This issue affects an unknown functionality of the component mod_proxy_wstunnel. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.
The weakness was published 06/10/2021. The advisory is shared at httpd.apache.org. The identification of this vulnerability is CVE-2019-17567. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 222861 (Linux Distros Unpatched Vulnerability : CVE-2019-17567), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 2.4.48 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (222861). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
Version
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.4.6
- 2.4.7
- 2.4.8
- 2.4.9
- 2.4.10
- 2.4.11
- 2.4.12
- 2.4.13
- 2.4.14
- 2.4.15
- 2.4.16
- 2.4.17
- 2.4.18
- 2.4.19
- 2.4.20
- 2.4.21
- 2.4.22
- 2.4.23
- 2.4.24
- 2.4.25
- 2.4.26
- 2.4.27
- 2.4.28
- 2.4.29
- 2.4.30
- 2.4.31
- 2.4.32
- 2.4.33
- 2.4.34
- 2.4.35
- 2.4.36
- 2.4.37
- 2.4.38
- 2.4.39
- 2.4.40
- 2.4.41
- 2.4.42
- 2.4.43
- 2.4.44
- 2.4.45
- 2.4.46
License
Website
- Vendor: https://www.apache.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.2
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.3
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: Improper authenticationCWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
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: 222861
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-17567
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: HTTP Server 2.4.48
Timeline
10/14/2019 🔍06/10/2021 🔍
06/10/2021 🔍
03/05/2025 🔍
Sources
Vendor: apache.orgAdvisory: httpd.apache.org
Status: Confirmed
CVE: CVE-2019-17567 (🔍)
GCVE (CVE): GCVE-0-2019-17567
GCVE (VulDB): GCVE-100-176765
Entry
Created: 06/10/2021 16:32Updated: 03/05/2025 08:23
Changes: 06/10/2021 16:32 (40), 06/12/2021 20:33 (5), 06/10/2024 20:46 (34), 03/05/2025 08:23 (2)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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