Ruby up to 2.2.8/2.3.4/2.4.0 WEBrick Library Escape Sequence improper authentication
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.4 | $0-$5k | 0.00 |
A vulnerability has been found in Ruby up to 2.2.8/2.3.4/2.4.0 (Programming Language Software) and classified as critical. Affected by this vulnerability is some unknown functionality of the component WEBrick Library. The manipulation as part of a Escape Sequence leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.
The bug was discovered 09/15/2015. The weakness was presented 09/19/2017 (Website). It is possible to read the advisory at securitytracker.com. This vulnerability is known as CVE-2017-10784 since 07/01/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 735 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 103471 (Debian DLA-1113-1 : ruby1.8 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176210 (Debian Security Update for ruby2.3 (DSA 4031-1)).
Upgrading to version 2.2.9, 2.3.5 or 2.4.1 eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (103471). See 106032, 106723, 106848 and 107761 for similar entries.
Product
Type
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: 7.5VulDB 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
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: Improper authenticationCWE: CWE-287
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: 103471
Nessus Name: Debian DLA-1113-1 : ruby1.8 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 830183
OpenVAS Name: Debian Security Advisory DSA 4031-1 (ruby2.3 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Ruby 2.2.9/2.3.5/2.4.1
Timeline
09/15/2015 🔍07/01/2017 🔍
09/14/2017 🔍
09/19/2017 🔍
09/19/2017 🔍
09/20/2017 🔍
09/26/2017 🔍
09/27/2017 🔍
12/29/2022 🔍
Sources
Advisory: RHSA-2017:3485⛔Researcher: Yusuke Endoh.
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-10784 (🔍)
OVAL: 🔍
SecurityTracker: 1039363
SecurityFocus: 100853 - Ruby CVE-2017-10784 Security Bypass Vulnerability
See also: 🔍
Entry
Created: 09/20/2017 09:00Updated: 12/29/2022 13:13
Changes: 09/20/2017 09:00 (79), 11/17/2019 18:03 (4), 01/13/2021 13:00 (3), 01/13/2021 13:07 (1), 12/29/2022 13:13 (3)
Complete: 🔍
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