CVE-2020-24034
CVSS V2 High 9
CVSS V3 High 8.8
Description
Sagemcom F@ST 5280 routers using firmware version 1.150.61 have insecure deserialization that allows any authenticated user to perform a privilege escalation to any other user. By making a request with valid sess_id, nonce, and ha1 values inside of the serialized session cookie, an attacker may alter the user value inside of this cookie, and assume the role and permissions of the user specified. By assuming the role of the user internal, which is inaccessible to end users by default, the attacker gains the permissions of the internal account, which includes the ability to flash custom firmware to the router, allowing the attacker to achieve a complete compromise.
Overview
- CVE ID
- CVE-2020-24034
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-01T18:15:13
- Last Modified Date
- 2020-09-11T14:36:29
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:sagemcom:f\@st_5280_router_firmware:1.150.61:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:sagemcom:f\@st_5280_router:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 9
- Severity
- HIGH
- Exploitability Score
- 8
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://support.sagemcom.com/fr/haut-debit | Vendor Advisory |
| https://seclists.org/fulldisclosure/2020/Sep/3 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2020/Sep/3 | Mailing List Third Party Advisory |
| http://packetstormsecurity.com/files/159026/Sagemcom-F-ST-5280-Privilege-Escalation.html | Exploit Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-24034 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24034 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:24:37 | Added to TrackCVE | |||
| 2022-12-04 21:52:56 | 2020-09-01T18:15Z | 2020-09-01T18:15:13 | CVE Published Date | updated |
| 2022-12-04 21:52:56 | 2020-09-11T14:36:29 | CVE Modified Date | updated | |
| 2022-12-04 21:52:56 | Analyzed | Vulnerability Status | updated |