CVE-2022-31166 Vulnerability Analysis & Exploit Details

CVE-2022-31166
Vulnerability Scoring

8.1

/10

Severe Risk

Cybersecurity professionals consider CVE-2022-31166 an immediate threat requiring urgent mitigation.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or special conditions.
Attack Vector: Network
Vulnerability is exploitable over a network without physical access.
Privileges Required: Low
Some privileges are necessary to exploit the vulnerability.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2022-31166 Details

Status: Modified

Last updated: 🕖 21 Nov 2024, 07:04 UTC
Originally published on: 🕑 07 Sep 2022, 14:15 UTC

Time between publication and last update: 805 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVE-2022-31166 Vulnerability Summary

CVE-2022-31166: XWiki Platform Old Core is a core package for XWiki Platform, a generic wiki platform. Starting in versions 11.3.7, 11.0.3, and 12.0RC1, it is possible to exploit a bug in XWikiRights resolution of groups to obtain privilege escalation. More specifically, editing a right with the object editor leads to adding a supplementary empty value to groups which is then resolved as a reference to XWiki.WebHome page. Adding an XWikiGroup xobject to that page then transforms it to a group, any user put in that group would then obtain the privileges related to the edited right. Note that this security issue is normally mitigated by the fact that XWiki.WebHome (and XWiki space in general) should be protected by default for edit rights. The problem has been patched in XWiki 13.10.4 and 14.2RC1 to not consider anymore empty values in XWikiRights. It's possible to work around the problem by setting appropriate rights on XWiki.WebHome page to prevent users to edit it.

Assessing the Risk of CVE-2022-31166

Access Complexity Graph

The exploitability of CVE-2022-31166 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2022-31166

CVE-2022-31166 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2022-31166, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2022-31166, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: High
Exploiting CVE-2022-31166 can result in unauthorized access to sensitive data, severely compromising data privacy.
Integrity: High
CVE-2022-31166 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
Availability: None
CVE-2022-31166 does not impact system availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 1.267% (probability of exploit)

EPSS Percentile: 85.8% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 14.200000000000003% of others.

CVE-2022-31166 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

cpe:2.3:a:xwiki:xwiki:11.3.7:*:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.3.7:*:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.3:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.3:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.4:-:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.4:-:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.4:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.4:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.5:-:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.5:-:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.5:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.5:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.6:-:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:11.6:-:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:11.6:rc1:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:11.7:-:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:11.10.13:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:12.4:-:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:12.4:rc1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:12.5:-:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:12.10.7:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:12.10.8:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:12.10.9:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:13.2:rc1:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:13.3:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:13.4.5:*:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:13.4.5:*:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:13.4.6:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:13.4.7:*:*:*:*:*:*:*
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cpe:2.3:a:xwiki:xwiki:14.1:rc1:*:*:*:*:*:*

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