UAP-Core up to 0.7.2 Regular Expression User-Agent input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in UAP-Core up to 0.7.2. It has been rated as problematic. This vulnerability affects unknown code of the component Regular Expression Handler. The manipulation of the argument User-Agent leads to input validation. This vulnerability is referenced as CVE-2020-5243. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in UAP-Core up to 0.7.2 and classified as problematic. This issue affects an unknown function of the component Regular Expression Handler. The manipulation of the argument User-Agent with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

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.

The weakness was published 02/21/2020 (GitHub Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2020-5243 since 01/02/2020. The attack may be initiated remotely. The successful exploitation requires a simple authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 0.7.3 eliminates this vulnerability.

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Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.7
NVD Vector: 🔍

CNA Base Score: 5.7
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: UAP-Core 0.7.3
Patch: github.com

Timelineinfo

01/02/2020 🔍
02/21/2020 +50 days 🔍
02/21/2020 +0 days 🔍
04/02/2024 +1502 days 🔍

Sourcesinfo

Advisory: 0afd61ed85396a3b5316f18bfd1edfaadf8e88e1
Status: Not defined

CVE: CVE-2020-5243 (🔍)
GCVE (CVE): GCVE-0-2020-5243
GCVE (VulDB): GCVE-100-150395

Entryinfo

Created: 02/21/2020 08:27
Updated: 04/02/2024 08:28
Changes: 02/21/2020 08:27 (39), 02/21/2020 08:32 (11), 04/02/2024 08:24 (18), 04/02/2024 08:28 (19)
Complete: 🔍
Cache ID: 216::103

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