CVE-2020-5243
Last modified
CVE-2020-5243 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. EPSS estimates a 2.21% chance of exploitation in the next 30 days.
Description
uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. This has been patched in uap-core 0.7.3.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Uap-Core Project | Uap-Core | < 0.7.3 |
References
- https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9pExploit, Third Party Advisory
- https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9pExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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