Rob Richards XmlSecLibs up to 3.0.2 Signature XML Message input validation
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.4 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Rob Richards XmlSecLibs up to 3.0.2. This issue affects some unknown processing of the component Signature Handler. This manipulation as part of XML Message causes input validation. This vulnerability is tracked as CVE-2019-3465. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.
Details
A vulnerability has been found in Rob Richards XmlSecLibs up to 3.0.2 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Signature Handler. The manipulation as part of a XML Message leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Rob Richards XmlSecLibs, all versions prior to v3.0.3, as used for example by SimpleSAMLphp, performed incorrect validation of cryptographic signatures in XML messages, allowing an authenticated attacker to impersonate others or elevate privileges by creating a crafted XML message.
The weakness was disclosed 11/07/2019 as not defined mailinglist post (Bugtraq). The advisory is shared at seclists.org. This vulnerability is known as CVE-2019-3465 since 12/31/2018. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation needs a single authentication. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 254348 (Linux Distros Unpatched Vulnerability : CVE-2019-3465), which helps to determine the existence of the flaw in a target environment.
Upgrading to version 3.0.3 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (254348). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.6VulDB Meta Temp Score: 7.4
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔍
CVSSv2
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
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 |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 254348
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-3465
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: XmlSecLibs 3.0.3
Patch: github.com
Timeline
12/31/2018 🔍11/07/2019 🔍
11/08/2019 🔍
08/25/2025 🔍
Sources
Advisory: 0a53d3c3aa87564910cae4ed01416441d3ae0db5Status: Confirmed
CVE: CVE-2019-3465 (🔍)
GCVE (CVE): GCVE-0-2019-3465
GCVE (VulDB): GCVE-100-145237
Entry
Created: 11/08/2019 12:56Updated: 08/25/2025 20:02
Changes: 11/08/2019 12:56 (42), 11/08/2019 13:01 (17), 02/05/2024 16:51 (5), 02/05/2024 16:59 (1), 08/25/2025 20:02 (19)
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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