CVE-2019-15261
published 2019-10-16CVE-2019-15261: A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an…
PriorityP349high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
EPSS
1.37%
69.2th percentile
A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cause an internal process of the targeted AP to crash, which in turn would cause the AP to reload. The AP reload would cause a DoS condition for clients that are associated with the AP.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | aironet_1810_firmware | >= 8.4 < 8.5.151.0 | 8.5.151.0 |
| cisco | aironet_1810_firmware | >= 8.8 < 8.8.125.0 | 8.8.125.0 |
| cisco | aironet_1810_firmware | >= 8.9 < 8.9.111.0 | 8.9.111.0 |
| cisco | aironet_1830_firmware | >= 8.4 < 8.5.151.0 | 8.5.151.0 |
| cisco | aironet_1830_firmware | >= 8.8 < 8.8.125.0 | 8.8.125.0 |
| cisco | aironet_1830_firmware | >= 8.9 < 8.9.111.0 | 8.9.111.0 |
| cisco | aironet_1850_firmware | >= 8.4 < 8.5.151.0 | 8.5.151.0 |
| cisco | aironet_1850_firmware | >= 8.8 < 8.8.125.0 | 8.8.125.0 |
| cisco | aironet_1850_firmware | >= 8.9 < 8.9.111.0 | 8.9.111.0 |
| cisco | aironet_access_points_point-to-point_tunneling_protocol | — | — |
| cisco | cisco_aironet_access_point_software | >= unspecified < n/a | n/a |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv3.08.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
vendor_cisco8.6HIGH
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Cisco
Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
vendor_cisco·2019-10-16·CVSS 8.6
CVE-2019-15261 [HIGH] CWE-20 Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition.
The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cause an internal
Cisco
Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2019-15261 Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
CVE-2019-15261: Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability
A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cau
GHSA
GHSA-3273-9gqr-v74w: A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow a
ghsa_unreviewed·2022-05-24
CVE-2019-15261 [HIGH] CWE-20 GHSA-3273-9gqr-v74w: A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow a
A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cause an internal process of the targeted AP to crash, which in turn would cause the AP to reload. The AP reload
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2019-10-16
Published