Auth Timing Side-Channel in TYPO3 7.6.x-11.5.x (pre-7.6.58)
CVE-2022-36105 Published on September 13, 2022
User Enumeration via Response Timing in TYPO3
TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that observing response time during user authentication (backend and frontend) can be used to distinguish between existing and non-existing user accounts. Extension authors of 3rd party TYPO3 extensions providing a custom authentication service should check if the extension is affected by the described problem. Affected extensions must implement new `MimicServiceInterface::mimicAuthUser`, which simulates corresponding times regular processing would usually take. Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix this problem. There are no known workarounds for this issue.
Vulnerability Analysis
CVE-2022-36105 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is a Side Channel Attack Vulnerability?
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not. Discrepancies can take many forms, and variations may be detectable in timing, control flow, communications such as replies or requests, or general behavior. These discrepancies can reveal information about the product's operation or internal state to an unauthorized actor. In some cases, discrepancies can be used by attackers to form a side channel.
CVE-2022-36105 has been classified to as a Side Channel Attack vulnerability or weakness.
Products Associated with CVE-2022-36105
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Affected Versions
typo3:- Version >= 7.0.0, < 7.6.58 is affected.
- Version >= 8.0.0, < 8.7.48 is affected.
- Version >= 9.0.0, < 9.5.37 is affected.
- Version >= 10.0.0, < 10.4.32 is affected.
- Version >= 11.0.0, < 11.5.16 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2022-36105
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| composer | typo3/cms-core | >= 7.0.0, < 7.6.58 | 7.6.58 |
| composer | typo3/cms-core | >= 8.0.0, < 8.7.48 | 8.7.48 |
| composer | typo3/cms-core | >= 9.0.0, < 9.5.37 | 9.5.37 |
| composer | typo3/cms-core | >= 10.0.0, < 10.4.32 | 10.4.32 |
| composer | typo3/cms-core | >= 11.0.0, < 11.5.16 | 11.5.16 |
| composer | typo3/cms | >= 10.0.0, < 10.4.32 | 10.4.32 |
| composer | typo3/cms | >= 11.0.0, < 11.5.16 | 11.5.16 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.