CWE-182
Collapse of Data into Unsafe Value
The product filters data in a way that causes it to be reduced or "collapsed" into an unsafe value that violates an expected security property.
CVE-2020-7921 (GCVE-0-2020-7921)
Vulnerability from cvelistv5
Published
2020-05-06 14:55
Modified
2024-11-18 17:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-182 - Collapse of Data into Unsafe Value
Summary
Improper serialization of internal state in the authorization subsystem in MongoDB Server's authorization subsystem permits a user with valid credentials to bypass IP whitelisting protection mechanisms following administrative action. This issue affects MongoDB Server v4.2 versions prior to 4.2.3; MongoDB Server v4.0 versions prior to 4.0.15; MongoDB Server v4.3 versions prior to 4.3.3and MongoDB Server v3.6 versions prior to 3.6.18.
References
| ► | URL | Tags | |||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MongoDB Inc. | MongoDB Server |
Version: 4.2 < 4.2.3 Version: 4.0 < 4.0.15 Version: 3.6 < 3.6.18 Version: 4.3 < 4.3.3 |
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CVE-2024-25617 (GCVE-0-2024-25617)
Vulnerability from cvelistv5
Published
2024-02-14 20:55
Modified
2025-02-13 17:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version 6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5. There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: < 6.5 |
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Mitigation ID: MIT-44
Phase: Architecture and Design
Strategy: Input Validation
Description:
- Avoid making decisions based on names of resources (e.g. files) if those resources can have alternate names.
Mitigation ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation ID: MIT-20
Phase: Implementation
Strategy: Input Validation
Description:
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
Mitigation
Phases:
Description:
- Canonicalize the name to match that of the file system's representation of the name. This can sometimes be achieved with an available API (e.g. in Win32 the GetFullPathName function).
No CAPEC attack patterns related to this CWE.