NVD Vulnerability Detail

CVE-2021-34724

Summary	A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to elevate privileges and execute arbitrary code on the underlying operating system as the root user. An attacker must be authenticated on an affected device as a PRIV15 user. This vulnerability is due to insufficient file system protection and the presence of a sensitive file in the bootflash directory on an affected device. An attacker could exploit this vulnerability by overwriting an installer file stored in the bootflash directory with arbitrary commands that can be executed with root-level privileges. A successful exploit could allow the attacker to read and write changes to the configuration database on the affected device.
Publication Date	Sept. 23, 2021, 12:15 p.m.
Registration Date	Sept. 23, 2021, 4:04 p.m.
Last Update	Nov. 21, 2024, 3:11 p.m.

CVSS3.1 : MEDIUM
スコア	6.0
Vector	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	高
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	高
完全性への影響(I)	高
可用性への影響(A)	なし

CVSS2.0 : MEDIUM
Score	6.6
Vector	AV:L/AC:L/Au:N/C:C/I:C/A:N
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	高
完全性への影響(I)	高
可用性への影響(A)	なし
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:o:cisco:ios_xe_sd-wan::::::::			17.3.1a
execution environment
1	cpe:2.3:h:cisco:1000_integrated_services_router:-:::::::*
2	cpe:2.3:h:cisco:1100-4g\/6g_integrated_services_router:-:::::::*
3	cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:::::::*
4	cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:::::::*
5	cpe:2.3:h:cisco:1100_integrated_services_router:-:::::::*
6	cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:::::::*
7	cpe:2.3:h:cisco:1101_integrated_services_router:-:::::::*
8	cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:::::::*
9	cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:::::::*
10	cpe:2.3:h:cisco:1109_integrated_services_router:-:::::::*
11	cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:::::::*
12	cpe:2.3:h:cisco:1111x_integrated_services_router:-:::::::*
13	cpe:2.3:h:cisco:111x_integrated_services_router:-:::::::*
14	cpe:2.3:h:cisco:1120_integrated_services_router:-:::::::*
15	cpe:2.3:h:cisco:1160_integrated_services_router:-:::::::*
16	cpe:2.3:h:cisco:4000_integrated_services_router:-:::::::*
17	cpe:2.3:h:cisco:422_integrated_services_router:-:::::::*
18	cpe:2.3:h:cisco:4221_integrated_services_router:-:::::::*
19	cpe:2.3:h:cisco:4321_integrated_services_router:-:::::::*
20	cpe:2.3:h:cisco:4331_integrated_services_router:-:::::::*
21	cpe:2.3:h:cisco:4351_integrated_services_router:-:::::::*
22	cpe:2.3:h:cisco:4431_integrated_services_router:-:::::::*
23	cpe:2.3:h:cisco:4451-x_integrated_services_router:-:::::::*
24	cpe:2.3:h:cisco:4451_integrated_services_router:-:::::::*
25	cpe:2.3:h:cisco:4461_integrated_services_router:-:::::::*
26	cpe:2.3:h:cisco:asr_1000:-:::::::*
27	cpe:2.3:h:cisco:asr_1000-esp100:-:::::::*
28	cpe:2.3:h:cisco:asr_1000-x:-:::::::*
29	cpe:2.3:h:cisco:asr_1000_series:-:::::::*
30	cpe:2.3:h:cisco:asr_1000_series_route_processor_\(rp2\):-:::::::*
31	cpe:2.3:h:cisco:asr_1000_series_route_processor_\(rp3\):-:::::::*
32	cpe:2.3:h:cisco:asr_1001:-:::::::*
33	cpe:2.3:h:cisco:asr_1001-hx:-:::::::*
34	cpe:2.3:h:cisco:asr_1001-hx_r:-:::::::*
35	cpe:2.3:h:cisco:asr_1001-x:-:::::::*
36	cpe:2.3:h:cisco:asr_1001-x_r:-:::::::*
37	cpe:2.3:h:cisco:asr_1002:-:::::::*
38	cpe:2.3:h:cisco:asr_1002-hx:-:::::::*
39	cpe:2.3:h:cisco:asr_1002-hx_r:-:::::::*
40	cpe:2.3:h:cisco:asr_1002-x:-:::::::*
41	cpe:2.3:h:cisco:asr_1002-x_r:-:::::::*
42	cpe:2.3:h:cisco:asr_1004:-:::::::*
43	cpe:2.3:h:cisco:asr_1006:-:::::::*
44	cpe:2.3:h:cisco:asr_1006-x:-:::::::*
45	cpe:2.3:h:cisco:asr_1009-x:-:::::::*
46	cpe:2.3:h:cisco:asr_1013:-:::::::*
47	cpe:2.3:h:cisco:asr_1023:-:::::::*
48	cpe:2.3:h:cisco:csr_1000v:-:::::::*

Related information, measures and tools

No	URL	refsource	タグ
1	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-privesc-VP4FG3jD		Vendor Advisory
2	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-privesc-VP4FG3jD		Vendor Advisory

Common Vulnerabilities List

JVN Vulnerability Information

Cisco IOS XE SD-WAN ソフトウェアにおける脆弱性

Title	Cisco IOS XE SD-WAN ソフトウェアにおける脆弱性
Summary	Cisco IOS XE SD-WAN ソフトウェアには、不特定の脆弱性が存在します。
Possible impacts	情報を取得される、および情報を改ざんされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	Sept. 22, 2021, midnight
Registration Date	Sept. 8, 2022, 3:04 p.m.
Last Update	Sept. 8, 2022, 3:04 p.m.

Affected System

シスコシステムズ

Cisco IOS XE SD-WAN

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2021-34724	https://www.cve.org/CVERecord?id=CVE-2021-34724
National Vulnerability Database (NVD)
2	CVE-2021-34724	https://nvd.nist.gov/vuln/detail/CVE-2021-34724

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-Other	https://www.ipa.go.jp/security/vuln/CWE.html#CWEOther

ベンダー情報

No	Name	URL
Cisco Security Advisory
1	cisco-sa-iosxesdwan-privesc-VP4FG3jD	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-privesc-VP4FG3jD

Change Log

No	Changed Details	Date of change
1	[2022年09月08日] 掲載	Sept. 8, 2022, 3:04 p.m.

Configuration1		or higher	or less	more than	less than
cpe:2.3:o:cisco:ios_xe_sd-wan::::::::			17.3.1a
execution environment
1	cpe:2.3:h:cisco:1000_integrated_services_router:-:::::::*
2	cpe:2.3:h:cisco:1100-4g\/6g_integrated_services_router:-:::::::*
3	cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:::::::*
4	cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:::::::*
5	cpe:2.3:h:cisco:1100_integrated_services_router:-:::::::*
6	cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:::::::*
7	cpe:2.3:h:cisco:1101_integrated_services_router:-:::::::*
8	cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:::::::*
9	cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:::::::*
10	cpe:2.3:h:cisco:1109_integrated_services_router:-:::::::*
11	cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:::::::*
12	cpe:2.3:h:cisco:1111x_integrated_services_router:-:::::::*
13	cpe:2.3:h:cisco:111x_integrated_services_router:-:::::::*
14	cpe:2.3:h:cisco:1120_integrated_services_router:-:::::::*
15	cpe:2.3:h:cisco:1160_integrated_services_router:-:::::::*
16	cpe:2.3:h:cisco:4000_integrated_services_router:-:::::::*
17	cpe:2.3:h:cisco:422_integrated_services_router:-:::::::*
18	cpe:2.3:h:cisco:4221_integrated_services_router:-:::::::*
19	cpe:2.3:h:cisco:4321_integrated_services_router:-:::::::*
20	cpe:2.3:h:cisco:4331_integrated_services_router:-:::::::*
21	cpe:2.3:h:cisco:4351_integrated_services_router:-:::::::*
22	cpe:2.3:h:cisco:4431_integrated_services_router:-:::::::*
23	cpe:2.3:h:cisco:4451-x_integrated_services_router:-:::::::*
24	cpe:2.3:h:cisco:4451_integrated_services_router:-:::::::*
25	cpe:2.3:h:cisco:4461_integrated_services_router:-:::::::*
26	cpe:2.3:h:cisco:asr_1000:-:::::::*
27	cpe:2.3:h:cisco:asr_1000-esp100:-:::::::*
28	cpe:2.3:h:cisco:asr_1000-x:-:::::::*
29	cpe:2.3:h:cisco:asr_1000_series:-:::::::*
30	cpe:2.3:h:cisco:asr_1000_series_route_processor_\(rp2\):-:::::::*
31	cpe:2.3:h:cisco:asr_1000_series_route_processor_\(rp3\):-:::::::*
32	cpe:2.3:h:cisco:asr_1001:-:::::::*
33	cpe:2.3:h:cisco:asr_1001-hx:-:::::::*
34	cpe:2.3:h:cisco:asr_1001-hx_r:-:::::::*
35	cpe:2.3:h:cisco:asr_1001-x:-:::::::*
36	cpe:2.3:h:cisco:asr_1001-x_r:-:::::::*
37	cpe:2.3:h:cisco:asr_1002:-:::::::*
38	cpe:2.3:h:cisco:asr_1002-hx:-:::::::*
39	cpe:2.3:h:cisco:asr_1002-hx_r:-:::::::*
40	cpe:2.3:h:cisco:asr_1002-x:-:::::::*
41	cpe:2.3:h:cisco:asr_1002-x_r:-:::::::*
42	cpe:2.3:h:cisco:asr_1004:-:::::::*
43	cpe:2.3:h:cisco:asr_1006:-:::::::*
44	cpe:2.3:h:cisco:asr_1006-x:-:::::::*
45	cpe:2.3:h:cisco:asr_1009-x:-:::::::*
46	cpe:2.3:h:cisco:asr_1013:-:::::::*
47	cpe:2.3:h:cisco:asr_1023:-:::::::*
48	cpe:2.3:h:cisco:csr_1000v:-:::::::*