CVE-2022-26647

12.07.2022, 10:15

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). The webserver of affected devices calculates session ids and nonces in an insecure manner. This could allow an unauthenticated remote attacker to brute-force session ids and hijack existing sessions.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	8.8 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
siemens	CNA	8.8 HIGH				CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CVE	ADP	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 74%

Vendor	Product	Version
siemens	scalance_x200-4p_irt_firmware	*
siemens	scalance_x201-3p_irt_firmware	*
siemens	scalance_x201-3p_irt_pro_firmware	*
siemens	scalance_x202-2irt_firmware	*
siemens	scalance_x202-2p_irt_firmware	*
siemens	scalance_x202-2p_irt_pro_firmware	*
siemens	scalance_x204-2_firmware	𝑥 < 5.2.6
siemens	scalance_x204-2fm_firmware	𝑥 < 5.2.6
siemens	scalance_x204-2ld_firmware	𝑥 < 5.2.6
siemens	scalance_x204-2ld_ts_firmware	𝑥 < 5.2.6
siemens	scalance_x204-2ts_firmware	𝑥 < 5.2.6
siemens	scalance_x204irt_firmware	*
siemens	scalance_x204irt_pro_firmware	*
siemens	scalance_x206-1_firmware	𝑥 < 5.2.6
siemens	scalance_x206-1ld_firmware	𝑥 < 5.2.6
siemens	scalance_x208_firmware	𝑥 < 5.2.6
siemens	scalance_x208_pro_firmware	𝑥 < 5.2.6
siemens	scalance_x212-2_firmware	𝑥 < 5.2.6
siemens	scalance_x212-2ld_firmware	𝑥 < 5.2.6
siemens	scalance_x216_firmware	𝑥 < 5.2.6
siemens	scalance_x224_firmware	𝑥 < 5.2.6
siemens	scalance_xf201-3p_irt_firmware	*
siemens	scalance_xf202-2p_irt_firmware	*
siemens	scalance_xf204_firmware	𝑥 < 5.2.6
siemens	scalance_xf204-2_firmware	𝑥 < 5.2.6
siemens	scalance_xf204-2ba_irt_firmware	*
siemens	scalance_xf204irt_firmware	*
siemens	scalance_xf206-1_firmware	𝑥 < 5.2.6
siemens	scalance_xf208_firmware	𝑥 < 5.2.6

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-330 - Use of Insufficiently Random Values
The software uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-310038.pdf