OneLogin Ruby-saml up to 1.6.0 XML DOM SAML Data improper authentication
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.3 | $0-$5k | 0.00 |
Summary
A vulnerability categorized as critical has been discovered in OneLogin Ruby-saml up to 1.6.0. This impacts an unknown function of the component XML DOM Handler. The manipulation as part of SAML Data results in improper authentication. This vulnerability was named CVE-2017-11428. The attack may be performed from remote. There is no available exploit.
Details
A vulnerability, which was classified as critical, was found in OneLogin Ruby-saml up to 1.6.0 (Programming Language Software). Affected is an unknown functionality of the component XML DOM Handler. The manipulation as part of a SAML Data leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
The bug was discovered 02/27/2018. The weakness was presented 04/17/2019. This vulnerability is traded as CVE-2017-11428 since 07/18/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 414 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 216932 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : ruby-saml vulnerabilities (USN-7309-1)), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370800 (OneLogin "ruby-saml" Authentication Bypass Vulnerability).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at Tenable (216932). Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.3VulDB Meta Temp Score: 8.3
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CNA Base Score: 7.7
CNA Vector (Duo Security, Inc.): 🔍
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: 216932
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : ruby-saml vulnerabilities (USN-7309-1)
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
07/18/2017 🔍02/27/2018 🔍
04/17/2019 🔍
04/17/2019 🔍
02/28/2025 🔍
Sources
Advisory: duo.comStatus: Not defined
CVE: CVE-2017-11428 (🔍)
GCVE (CVE): GCVE-0-2017-11428
GCVE (VulDB): GCVE-100-133428
Entry
Created: 04/17/2019 22:28Updated: 02/28/2025 17:01
Changes: 04/17/2019 22:28 (58), 05/30/2020 07:16 (1), 08/29/2023 12:26 (3), 08/29/2023 12:34 (12), 02/28/2025 17:01 (17)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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