Linux Kernel 2.0/2.2.0/2.4.0 Syncookie Firewall privileges management

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.1 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in Linux Kernel 2.0/2.2.0/2.4.0. Affected is an unknown function of the component Syncookie Handler. Performing a manipulation results in privileges management (Firewall). This vulnerability is cataloged as CVE-2001-0851. There is no exploit available. It is recommended to upgrade the affected component.
Details
A vulnerability was found in Linux Kernel 2.0/2.2.0/2.4.0 (Operating System). It has been classified as critical. This affects some unknown processing of the component Syncookie Handler. The manipulation with an unknown input leads to a privileges management vulnerability (Firewall). CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality. The summary by CVE is:
Linux kernel 2.0, 2.2 and 2.4 with syncookies enabled allows remote attackers to bypass firewall rules by brute force guessing the cookie.
The weakness was shared 12/06/2001 with Brown (Website). The advisory is shared at linuxsecurity.com. This vulnerability is uniquely identified as CVE-2001-0851. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.
The vulnerability scanner Nessus provides a plugin with the ID 13895 (Mandrake Linux Security Advisory : kernel (MDKSA-2001:082-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (7461), Tenable (13895), SecurityFocus (BID 3505†) and Vulnerability Center (SBV-45544†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.kernel.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 5.1
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: FirewallClass: Privileges management / Firewall
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 13895
Nessus Name: Mandrake Linux Security Advisory : kernel (MDKSA-2001:082-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/02/2001 🔍11/02/2001 🔍
12/06/2001 🔍
12/06/2001 🔍
07/31/2004 🔍
07/10/2014 🔍
07/21/2014 🔍
06/27/2021 🔍
Sources
Vendor: kernel.orgAdvisory: linuxsecurity.com
Organization: Brown
Status: Not defined
CVE: CVE-2001-0851 (🔍)
GCVE (CVE): GCVE-0-2001-0851
GCVE (VulDB): GCVE-100-17709
X-Force: 7461
SecurityFocus: 3505 - Linux Syn Filter Evasion Vulnerability
Vulnerability Center: 45544 - Linux Kernel 2.0, 2.2, 2.4 using Syncookis Remote Security Bypass, Medium
Entry
Created: 07/10/2014 23:18Updated: 06/27/2021 08:36
Changes: 07/10/2014 23:18 (62), 06/02/2017 08:05 (3), 06/27/2021 08:36 (3)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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