MediaWiki up to 1.27.3/1.28.2/1.29.1 Language Converter input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.7 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in MediaWiki up to 1.27.3/1.28.2/1.29.1 (Content Management System). This affects an unknown code of the component Language Converter. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity, and availability. The summary by CVE is:
The language converter in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows attackers to replace text inside tags via a rule definition followed by "a lot of junk."
The bug was discovered 11/14/2017. The weakness was shared 11/15/2017 (Website). The advisory is shared at lists.wikimedia.org. This vulnerability is uniquely identified as CVE-2017-8814 since 05/07/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104693 (FreeBSD : mediawiki -- multiple vulnerabilities (298829e2-ccce-11e7-92e4-000c29649f92)), 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 176216 (Debian Security Update for mediawiki (DSA 4036-1)).
Upgrading to version 1.27.4, 1.28.3 or 1.29.2 eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (104693). The entries 102879, 109444, 109445 and 109446 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: 7.0VulDB Meta Temp Score: 6.8
VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
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: 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 |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 104693
Nessus Name: FreeBSD : mediawiki -- multiple vulnerabilities (298829e2-ccce-11e7-92e4-000c29649f92)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 863854
OpenVAS Name: MediaWiki Multiple Vulnerabilities - November17 (Linux)
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: MediaWiki 1.27.4/1.28.3/1.29.2
Timeline
05/07/2017 🔍11/14/2017 🔍
11/15/2017 🔍
11/15/2017 🔍
11/16/2017 🔍
11/19/2017 🔍
11/20/2017 🔍
01/23/2021 🔍
Sources
Product: mediawiki.orgAdvisory: lists.wikimedia.org
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-8814 (🔍)
OVAL: 🔍
SecurityTracker: 1039812
See also: 🔍
Entry
Created: 11/16/2017 10:53Updated: 01/23/2021 18:48
Changes: 11/16/2017 10:53 (75), 12/06/2019 19:57 (4), 01/23/2021 18:48 (2)
Complete: 🔍
Cache ID: 3:402:103
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