Vulnerability Details : CVE-2021-25668
A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < V5.2.5). Incorrect processing of POST requests in the webserver may result in write out of bounds in heap. An attacker might leverage this to cause denial-of-service on the device and potentially remotely execute code.
Vulnerability category: OverflowMemory CorruptionExecute codeDenial of service
Products affected by CVE-2021-25668
- cpe:2.3:o:siemens:scalance_x200-4p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x201-3p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x201-3p_irt_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x202-2_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x202-2p_irt_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204_irt_pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2fm_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2ld_ts_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x204-2ts_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x206-1_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x206-1ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x208_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x208pro_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x212-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x212-2ld_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x216_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x224_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf201-3p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf202-2p_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204-2_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf204-2ba_irt_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf206-1_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_xf208_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x202-2p_irt_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-25668
0.54%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-25668
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-25668
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A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: productcert@siemens.com (Primary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Secondary)
References for CVE-2021-25668
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https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf
Patch;Vendor Advisory
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