CVE-2019-1817
published 2019-05-03CVE-2019-1817: A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.77%
75.7th percentile
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of HTTP and HTTPS requests. An attacker could exploit this vulnerability by sending a malformed HTTP or HTTPS request to an affected device. An exploit could allow the attacker to cause a restart of the web proxy process, resulting in a temporary DoS condition.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_web_security_appliance | >= unspecified < 11.5.2-020 | 11.5.2-020 |
| cisco | cisco_web_security_appliance | >= unspecified < 11.7.0-406 | 11.7.0-406 |
| cisco | web_security_appliance | — | — |
| cisco | web_security_appliance | — | — |
| cisco | web_security_appliance | — | — |
| cisco | web_security_appliance | — | — |
| cisco | web_security_appliance_malformed_request | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
vendor_cisco8.6HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Cisco
Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
vendor_cisco·2019-05-01·CVSS 8.6
CVE-2019-1817 [HIGH] CWE-20 Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
The vulnerability is due to improper validation of HTTP and HTTPS requests. An attacker could exploit this vulnerability by sending a malformed HTTP or HTTPS request to an affected device. An exploit could allow the attacker to cause a restart of the web proxy process, resulting in a temporary DoS condition.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://se
Cisco
Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2019-1817 Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
CVE-2019-1817: Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of HTTP and HTTPS requests. An attacker could exploit this vulnerability by sending a malformed HTTP or HTTPS request to an affected device. An exploit could allow the attacker to cause a restart of the web proxy process, resulting in a temporary DoS condition. Cisco has released software updates that address this vulnerability. There are no
CVSS: 3.0
CWE: CWE-20, CWE-20
Bug IDs: CSCvn31450
GHSA
GHSA-7577-f2mx-w9rc: A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attac
ghsa_unreviewed·2022-05-24
CVE-2019-1817 [HIGH] CWE-20 GHSA-7577-f2mx-w9rc: A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attac
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of HTTP and HTTPS requests. An attacker could exploit this vulnerability by sending a malformed HTTP or HTTPS request to an affected device. An exploit could allow the attacker to cause a restart of the web proxy process, resulting in a temporary DoS condition.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-2762 OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328)
bugzilla·2019-07-16·CVSS 5.3
CVE-2019-2762 [MEDIUM] CVE-2019-2762 OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328)
CVE-2019-2762 OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328)
It was discovered that the implementation of the Throwable class in the Utilities component of OpenJDK did not sufficiently validate serial stream before deserializing suppressed exceptions. A specially-crafted input could cause a Java application to construct inconsistent object and possibly use an excessive amount of system resources when deserialized.
Discussion:
Public now via Oracle CPU July 2019:
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html#AppendixJAVA
Fixed in Oracle Java SE 12.0.2, 11.0.4, 8u221, and 7u231.
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2019:1817 https://access.redhat.
Bugzilla
CVE-2019-2821 OpenJDK: Incorrect handling of certificate status messages during TLS handshake (JSSE, 8222678)
bugzilla·2019-07-16·CVSS 5.3
CVE-2019-2821 [MEDIUM] CVE-2019-2821 OpenJDK: Incorrect handling of certificate status messages during TLS handshake (JSSE, 8222678)
CVE-2019-2821 OpenJDK: Incorrect handling of certificate status messages during TLS handshake (JSSE, 8222678)
A flaw was found in the way the JSSE component of OpenJDK handled certificate status / OCSP stapling message during TLS handshake. A remote attacker could possibly use this flaw to gain access to certain sensitive information by manipulating TLS handshake messages.
Discussion:
Public now via Oracle CPU July 2019:
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html#AppendixJAVA
Fixed in Oracle Java SE 12.0.2 and 11.0.4.
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2019:1817 https://access.redhat.com/errata/RHSA-2019:1817
---
This issue has been addressed in the following products:
Red Hat Enterp
Bugzilla
CVE-2019-2818 OpenJDK: Non-constant time comparison in ChaCha20Cipher (Security, 8221344)
bugzilla·2019-07-15·CVSS 3.1
CVE-2019-2818 [LOW] CVE-2019-2818 OpenJDK: Non-constant time comparison in ChaCha20Cipher (Security, 8221344)
CVE-2019-2818 OpenJDK: Non-constant time comparison in ChaCha20Cipher (Security, 8221344)
It was discovered that the ChaCha20Cipher implementation in the Security component of OpenJDK used non-constant time comparison for comparing tags. A remote attacker could possible use the flaw to leak information about decryption state using the timing information.
Discussion:
Public now via Oracle CPU July 2019:
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html#AppendixJAVA
Fixed in Oracle Java SE 12.0.2 and 11.0.4.
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2019:1817 https://access.redhat.com/errata/RHSA-2019:1817
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 7
Via R
2019-05-03
Published