Ruby up to 2.3.7/2.4.4/2.5.1/2.6.0-preview2 Taint 7pk security
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.7 | $0-$5k | 0.00 |
A vulnerability was found in Ruby up to 2.3.7/2.4.4/2.5.1/2.6.0-preview2 (Programming Language Software). It has been rated as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a 7pk security vulnerability (Taint). Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. CVE summarizes:
An issue was discovered in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. It does not taint strings that result from unpacking tainted strings with some formats.
The bug was discovered 10/17/2018. The weakness was shared 11/16/2018 (Website). The advisory is shared for download at lists.debian.org. This vulnerability is handled as CVE-2018-16396 since 09/03/2018. 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 MITRE ATT&CK project declares the attack technique as T1211.
The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118247 (FreeBSD : ruby -- multiple vulnerabilities (afc60484-0652-440e-b01a-5ef814747f06)), 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 176522 (Debian Security Update for ruby2.3 (DSA 4332-1)).
Upgrading to version 2.3.8, 2.4.5 or 2.6.0-preview3 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 (118247). The entries 114428, 114429, 114430 and 114431 are related to this item.
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: 6.8VulDB Meta Temp Score: 6.7
VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.1
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
Name: TaintClass: 7pk security / Taint
CWE: CWE-254
ATT&CK: T1211
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: 118247
Nessus Name: FreeBSD : ruby -- multiple vulnerabilities (afc60484-0652-440e-b01a-5ef814747f06)
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: 🔍
Upgrade: Ruby 2.3.8/2.4.5/2.6.0-preview3
Timeline
03/28/2018 🔍09/03/2018 🔍
10/17/2018 🔍
10/20/2018 🔍
10/22/2018 🔍
11/16/2018 🔍
11/16/2018 🔍
11/17/2018 🔍
06/06/2023 🔍
Sources
Advisory: RHSA-2018:3729Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-16396 (🔍)
OVAL: 🔍
SecurityTracker: 1042106
SecurityFocus: 103686 - Ruby CVE-2018-6914 Directory Traversal Vulnerability
See also: 🔍
Entry
Created: 11/17/2018 11:05Updated: 06/06/2023 17:32
Changes: 11/17/2018 11:05 (76), 04/13/2020 17:04 (3), 06/06/2023 17:32 (5)
Complete: 🔍
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