Pi-Hole up to 4.4 Gravity Updater gravity.sh gravity_DownloadBlocklistFromUrl unrestricted upload
|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability was found in Pi-Hole up to 4.4. It has been rated as critical. Affected by this issue is the function
gravity_DownloadBlocklistFromUrl of the file gravity.sh of the component Gravity Updater. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-434. Impacted is confidentiality, integrity, and availability. CVE summarizes:
The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files. This can be abused for Remote Code Execution by writing to a PHP file in the web directory. (Also, it can be used in conjunction with the sudo rule for the www-data user to escalate privileges to root.) The code error is in gravity_DownloadBlocklistFromUrl in gravity.sh.
The weakness was presented 05/11/2020. This vulnerability is handled as CVE-2020-11108 since 03/30/2020. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation needs a simple authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/12/2020).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
CVSSv3VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5
VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: Privilege escalation
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
CountermeasuresRecommended: no mitigation known
0-Day Time: 🔒
Timeline03/30/2020 CVE assigned
05/11/2020 +42 days Advisory disclosed
05/12/2020 +1 days VulDB entry created
05/12/2020 +0 days VulDB last update
SourcesStatus: Not defined
CVE: CVE-2020-11108 (🔒)
EntryCreated: 05/12/2020 07:44 AM
Updated: 05/12/2020 07:49 AM
Changes: (17) vulnerability_cwe 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_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 source_cve_assigned source_cve_nvd_summary
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