CVE-2021-34699
High
Description
A vulnerability in the TrustSec CLI parser of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to an improper interaction between the web UI and the CLI parser. An attacker could exploit this vulnerability by requesting a particular CLI command to be run through the web UI. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
SeverityHigh
CVSS7.7
Exploit probability—
Product
Cisco Ios
PublishedSep 23, 2021
First seenSep 23, 2021
Weakness typeCWE-435CWE-435
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios | 12.2\(6\)i1, 15.0\(1\)sy, 15.0\(1\)sy1, 15.0\(1\)sy2, 15.0\(1\)sy3, 15.0\(1\)sy4, 15.0\(1\)sy5, 15.0\(1\)sy6, 15.0\(1\)sy7, 15.0\(1\)sy7a, 15.0\(1\)sy8, 15.0\(1\)sy9, 15.0\(1\)sy10, 15.0\(2\)ej, 15.0\(2\)ej1, 15.0\(2\)ek, 15.0\(2\)ek1, 15.0\(2\)ex, 15.0\(2\)ex1, 15.0\(2\)ex2, 15.0\(2\)ex3, 15.0\(2\)ex4, 15.0\(2\)ex5, 15.0\(2\)ex6, 15.0\(2\)ex7, 15.0\(2\)ex8, 15.0\(2\)ex10, 15.0\(2\)ex11, 15.0\(2\)ex12, 15.0\(2\)ex13, 15.0\(2\)ey, 15.0\(2\)ey1, 15.0\(2\)ey2, 15.0\(2\)ey3, 15.0\(2\)ez, 15.0\(2\)se, 15.0\(2\)se1, 15.0\(2\)se2, 15.0\(2\)se3, 15.0\(2\)se4, 15.0\(2\)se5, 15.0\(2\)se6, 15.0\(2\)se7, 15.0\(2\)se8, 15.0\(2\)se9, 15.0\(2\)se10, 15.0\(2\)se10a, 15.0\(2\)se11, 15.0\(2\)se12, 15.0\(2\)se13, 15.0\(2\)se13a, 15.0\(2\)se13b, 15.0\(2a\)ex5, 15.0\(2a\)se9, 15.1\(1\)sy, 15.1\(1\)sy1, 15.1\(1\)sy2, 15.1\(1\)sy3, 15.1\(1\)sy4, 15.1\(1\)sy5, 15.1\(1\)sy6, 15.1\(2\)sy, 15.1\(2\)sy1, 15.1\(2\)sy2, 15.1\(2\)sy3, 15.1\(2\)sy4, 15.1\(2\)sy4a, 15.1\(2\)sy5, 15.1\(2\)sy6, 15.1\(2\)sy7, 15.1\(2\)sy8, 15.1\(2\)sy9, 15.1\(2\)sy10, 15.1\(2\)sy11, 15.1\(2\)sy12, 15.1\(2\)sy13, 15.1\(2\)sy14, 15.1\(2\)sy15, 15.1\(2\)sy16, 15.1\(2\)sy16a, 15.1\(3\)svr1, 15.1\(3\)svr2, 15.1\(3\)svr3, 15.1\(3\)svs, 15.1\(3\)svs1, 15.1\(3\)svt1, 15.1\(3\)svt2, 15.2\(1\)e, 15.2\(1\)e1, 15.2\(1\)e2, 15.2\(1\)e3, 15.2\(1\)ey, 15.2\(1\)sy, 15.2\(1\)sy0a, 15.2\(1\)sy1, 15.2\(1\)sy1a, 15.2\(1\)sy2, 15.2\(1\)sy3, 15.2\(1\)sy4, 15.2\(1\)sy5, 15.2\(1\)sy6, 15.2\(1\)sy7, 15.2\(1\)sy8, 15.2\(2\)e, 15.2\(2\)e1, 15.2\(2\)e2, 15.2\(2\)e3, 15.2\(2\)e4, 15.2\(2\)e5, 15.2\(2\)e5a, 15.2\(2\)e5b, 15.2\(2\)e6, 15.2\(2\)e7, 15.2\(2\)e7b, 15.2\(2\)e8, 15.2\(2\)e9, 15.2\(2\)e9a, 15.2\(2\)e10, 15.2\(2\)e10a, 15.2\(2\)e10b, 15.2\(2\)ea, 15.2\(2\)ea1, 15.2\(2\)ea2, 15.2\(2\)ea3, 15.2\(2\)eb, 15.2\(2\)eb1, 15.2\(2\)eb2, 15.2\(2\)sy, 15.2\(2\)sy1, 15.2\(2\)sy2, 15.2\(2\)sy3, 15.2\(2a\)e1, 15.2\(2a\)e2, 15.2\(2b\)e, 15.2\(3\)e, 15.2\(3\)e1, 15.2\(3\)e2, 15.2\(3\)e3, 15.2\(3\)e4, 15.2\(3\)e5, 15.2\(3\)ea, 15.2\(3a\)e, 15.2\(3m\)e2, 15.2\(3m\)e7, 15.2\(3m\)e8, 15.2\(4\)e, 15.2\(4\)e1, 15.2\(4\)e2, 15.2\(4\)e3, 15.2\(4\)e4, 15.2\(4\)e5, 15.2\(4\)e5a, 15.2\(4\)e6, 15.2\(4\)e7, 15.2\(4\)e8, 15.2\(4\)e9, 15.2\(4\)e10, 15.2\(4\)e10a, 15.2\(4\)e10b, 15.2\(4\)e10c, 15.2\(4\)ea, 15.2\(4\)ea1, 15.2\(4\)ea2, 15.2\(4\)ea3, 15.2\(4\)ea4, 15.2\(4\)ea5, 15.2\(4\)ea6, 15.2\(4\)ea7, 15.2\(4\)ea8, 15.2\(4\)ea9, 15.2\(4\)ea9a, 15.2\(4\)ec1, 15.2\(4\)ec2, 15.2\(4m\)e1, 15.2\(4m\)e2, 15.2\(4m\)e3, 15.2\(4n\)e2, 15.2\(4o\)e2, 15.2\(4o\)e3, 15.2\(4p\)e1, 15.2\(4q\)e1, 15.2\(4s\)e1, 15.2\(5\)e, 15.2\(5\)e1, 15.2\(5\)e2, 15.2\(5\)e2b, 15.2\(5\)e2c, 15.2\(5\)ea, 15.2\(5\)ex, 15.2\(5a\)e, 15.2\(5a\)e1, 15.2\(5b\)e, 15.2\(5c\)e, 15.2\(6\)e, 15.2\(6\)e0a, 15.2\(6\)e0c, 15.2\(6\)e1, 15.2\(6\)e1a, 15.2\(6\)e1s, 15.2\(6\)e2 | — |
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