Siemens SCALANCE X308-2 GET Parameter XNo buffer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Siemens SCALANCE X302-7 EEC, SCALANCE X304-2FE, SCALANCE X306-1LD FE, SCALANCE X307-2 EEC, SCALANCE X307-3, SCALANCE X307-3LD, SCALANCE X308-2, SCALANCE X308-2LD, SCALANCE X308-2LH, SCALANCE X308-2LH+, SCALANCE X308-2M, SCALANCE X308-2M PoE, SCALANCE X308-2M TS, SCALANCE X310, SCALANCE X310FE, SCALANCE X320-1 FE, SCALANCE X320-1-2LD FE, SCALANCE X408-2, SCALANCE XR324-12M, SCALANCE XR324-12M TS, SCALANCE XR324-4M EEC, SCALANCE XR324-4M PoE, SCALANCE XR324-4M PoE TS and SCALANCE X308-2. The impacted element is an unknown function of the component GET Parameter Handler. The manipulation of the argument XNo leads to buffer overflow. This vulnerability is uniquely identified as CVE-2022-26334. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in Siemens SCALANCE X302-7 EEC, SCALANCE X304-2FE, SCALANCE X306-1LD FE, SCALANCE X307-2 EEC, SCALANCE X307-3, SCALANCE X307-3LD, SCALANCE X308-2, SCALANCE X308-2LD, SCALANCE X308-2LH, SCALANCE X308-2LH+, SCALANCE X308-2M, SCALANCE X308-2M PoE, SCALANCE X308-2M TS, SCALANCE X310, SCALANCE X310FE, SCALANCE X320-1 FE, SCALANCE X320-1-2LD FE, SCALANCE X408-2, SCALANCE XR324-12M, SCALANCE XR324-12M TS, SCALANCE XR324-4M EEC, SCALANCE XR324-4M PoE, SCALANCE XR324-4M PoE TS and SCALANCE X308-2 and classified as critical. This issue affects an unknown code of the component GET Parameter Handler. The manipulation of the argument XNo with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is availability.

The weakness was disclosed 04/12/2022 as ssa-836527. It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2022-26334 since 03/01/2022. 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 04/12/2022).

Addressing this vulnerability is possible by firewalling .

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/01/2022 🔍
04/12/2022 +41 days 🔍
04/12/2022 +0 days 🔍
04/14/2022 +2 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-836527
Status: Confirmed

CVE: CVE-2022-26334 (🔍)
GCVE (CVE): GCVE-0-2022-26334
GCVE (VulDB): GCVE-100-196907

Entryinfo

Created: 04/12/2022 13:27
Updated: 04/14/2022 11:44
Changes: 04/12/2022 13:27 (39), 04/14/2022 11:44 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!