CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.10 |
A vulnerability, which was classified as problematic, was found in Apache HTTP Server 2.4.37 (Web Server). This affects an unknown functionality of the component mod_ssl. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. This is going to have an impact on availability. The summary by CVE is:
A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.
The bug was discovered 01/22/2019. The weakness was released 01/30/2019 (Website). The advisory is shared at httpd.apache.org. This vulnerability is uniquely identified as CVE-2019-0190 since 11/14/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 121327 (Slackware 14.0 / 14.1 / 14.2 / current : httpd (SSA:2019-022-01)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351520 (Amazon Linux Security Advisory for httpd24: ALAS-2019-1166).
Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (121327). Entries connected to this vulnerability are available at 103521, 108939, 115057 and 115038.
Product
Type
Vendor
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: 6.4VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: Input validationCWE: CWE-20
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: 121327
Nessus Name: Slackware 14.0 / 14.1 / 14.2 / current : httpd (SSA:2019-022-01)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/14/2018 🔍01/22/2019 🔍
01/22/2019 🔍
01/22/2019 🔍
01/23/2019 🔍
01/30/2019 🔍
01/30/2019 🔍
01/31/2019 🔍
07/04/2023 🔍
Sources
Vendor: apache.orgAdvisory: httpd.apache.org
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2019-0190 (🔍)
SecurityFocus: 106743 - Apache HTTP Server CVE-2019-0190 Denial of Service Vulnerability
See also: 🔍
Entry
Created: 01/31/2019 13:00Updated: 07/04/2023 09:08
Changes: 01/31/2019 13:00 (54), 05/07/2020 06:29 (6), 07/04/2023 09:08 (19)
Complete: 🔍
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