Best Practical Request Tracker 4.1.x/4.2.x/4.3.x/4.4 email-ingestion input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.00 |
A vulnerability was found in Best Practical Request Tracker 4.1.x/4.2.x/4.3.x/4.4 (Ticket Tracking Software). It has been rated as problematic. Affected by this issue is an unknown code of the component email-ingestion. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:
The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.
The weakness was disclosed 03/21/2019 (Website). The advisory is shared for download at lists.fedoraproject.org. This vulnerability is handled as CVE-2018-18898 since 11/02/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 121521 (FreeBSD : p5-Email-Address-List -- DDoS related vulnerability (22b90fe6-258e-11e9-9c8d-6805ca0b3d42)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277600 (Fedora Security Update for perl-Email-Address-List (FEDORA-2019-ef5551fcff)).
Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (121521).
Product
Type
Vendor
Name
Version
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
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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: 🔍
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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 |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 121521
Nessus Name: FreeBSD : p5-Email-Address-List -- DDoS related vulnerability (22b90fe6-258e-11e9-9c8d-6805ca0b3d42)
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
11/02/2018 🔍01/31/2019 🔍
02/01/2019 🔍
03/21/2019 🔍
03/21/2019 🔍
08/03/2023 🔍
Sources
Advisory: USN-4517-1Status: Not defined
Confirmation: 🔍
CVE: CVE-2018-18898 (🔍)
Entry
Created: 03/21/2019 22:46Updated: 08/03/2023 12:28
Changes: 03/21/2019 22:46 (41), 05/17/2020 20:28 (26), 08/03/2023 12:28 (4)
Complete: 🔍
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