Apache Traffic Control up to 3.1.0/4.1.0 Config File ip_allow.config permission

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CVSS Meta Temp Score
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CTI Interest Score
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5.6$5k-$25k0.00

A vulnerability was found in Apache Traffic Control up to 3.1.0/4.1.0. It has been classified as critical. This affects some unknown functionality of the file ip_allow.config of the component Config File Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

When ORT (now via atstccfg) generates ip_allow.config files in Apache Traffic Control 3.0.0 to 3.1.0 and 4.0.0 to 4.1.0, those files include permissions that allow bad actors to push arbitrary content into and remove arbitrary content from CDN cache servers. Additionally, these permissions are potentially extended to IP addresses outside the desired range, resulting in them being granted to clients possibly outside the CDN arcitechture.

The weakness was shared 01/26/2021. It is possible to read the advisory at lists.apache.org. This vulnerability is uniquely identified as CVE-2020-17522 since 08/12/2020. The exploitability is told to be easy. The attack can only be initiated within the local network. A authentication is required for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/19/2021). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.8
NVD Vector: 🔒

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-275
ATT&CK: T1222

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

08/12/2020 CVE assigned
01/26/2021 +167 days Advisory disclosed
01/26/2021 +0 days VulDB entry created
02/19/2021 +24 days VulDB last update

Sourcesinfoedit

Vendor: https://www.apache.org/

Advisory: lists.apache.org
Status: Not defined

CVE: CVE-2020-17522 (🔒)

Entryinfoedit

Created: 01/26/2021 10:04 PM
Updated: 02/19/2021 03:14 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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