CVE-2020-7982

An issue was discovered in OpenWrt 18.06.0 to 18.06.6 and 19.07.0, and LEDE 17.01.0 to 17.01.7. A bug in the fork of the opkg package manager before 2020-01-25 prevents correct parsing of embedded checksums in the signed repository index, allowing a man-in-the-middle attacker to inject arbitrary package payloads (which are installed without verification).

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/openwrt/openwrt/commits/master	Patch Third Party Advisory
https://openwrt.org/advisory/2020-01-31-1	Vendor Advisory
https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982	Exploit Third Party Advisory
https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/	Exploit Press/Media Coverage Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openwrt:lede::::::::
	cpe:2.3:a:openwrt:openwrt::::::::
	cpe:2.3:a:openwrt:openwrt:19.07.0:-::::::

Information

Published : 2020-03-16 15:15

Updated : 2022-04-18 08:15

NVD link : CVE-2020-7982

Mitre link : CVE-2020-7982

JSON object : View

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

CWE-345

Insufficient Verification of Data Authenticity

Advertisement

Products Affected

openwrt

openwrt
lede

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/openwrt/openwrt/commits/master", "name": "https://github.com/openwrt/openwrt/commits/master", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://openwrt.org/advisory/2020-01-31-1", "name": "https://openwrt.org/advisory/2020-01-31-1", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982", "name": "https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/", "name": "https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/", "tags": ["Exploit", "Press/Media Coverage", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in OpenWrt 18.06.0 to 18.06.6 and 19.07.0, and LEDE 17.01.0 to 17.01.7. A bug in the fork of the opkg package manager before 2020-01-25 prevents correct parsing of embedded checksums in the signed repository index, allowing a man-in-the-middle attacker to inject arbitrary package payloads (which are installed without verification)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-345"}, {"lang": "en", "value": "CWE-754"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-7982", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}}, "publishedDate": "2020-03-16T22:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:openwrt:lede:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "17.01.7", "versionStartIncluding": "17.01.0"}, {"cpe23Uri": "cpe:2.3:a:openwrt:openwrt:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "18.06.7", "versionStartIncluding": "18.06.0"}, {"cpe23Uri": "cpe:2.3:a:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-04-18T15:15Z"}