pfSense up to 2.2.2 cross site scripting

Summaryinfo

A vulnerability was found in pfSense up to 2.2.2. It has been classified as problematic. Impacted is an unknown function. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2015-6510. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in pfSense up to 2.2.2 (Firewall Software). This affects an unknown code block. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Multiple cross-site scripting (XSS) vulnerabilities in pfSense before 2.2.3 allow remote attackers to inject arbitrary web script or HTML via the (1) srctrack, (2) use_mfs_tmp_size, or (3) use_mfs_var_size parameter to system_advanced_misc.php; the (4) port, (5) snaplen, or (6) count parameter to diag_packet_capture.php; the (7) pppoe_resethour, (8) pppoe_resetminute, (9) wpa_group_rekey, or (10) wpa_gmk_rekey parameter to interfaces.php; the (11) pppoe_resethour or (12) pppoe_resetminute parameter to interfaces_ppps_edit.php; the (13) member[] parameter to interfaces_qinq_edit.php; the (14) port or (15) retry parameter to load_balancer_pool_edit.php; the (16) pkgrepourl parameter to pkg_mgr_settings.php; the (17) zone parameter to services_captiveportal.php; the port parameter to (18) services_dnsmasq.php or (19) services_unbound.php; the (20) cache_max_ttl or (21) cache_min_ttl parameter to services_unbound_advanced.php; the (22) sshport parameter to system_advanced_a dmin.php; the (23) id, (24) tunable, (25) descr, or (26) value parameter to system_advanced_sysctl.php; the (27) firmwareurl, (28) repositoryurl, or (29) branch parameter to system_firmware_settings.php; the (30) pfsyncpeerip, (31) synchronizetoip, (32) username, or (33) passwordfld parameter to system_hasync.php; the (34) maxmss parameter to vpn_ipsec_settings.php; the (35) ntp_server1, (36) ntp_server2, (37) wins_server1, or (38) wins_server2 parameter to vpn_openvpn_csc.php; or unspecified parameters to (39) load_balancer_relay_action.php, (40) load_balancer_relay_action_edit.php, (41) load_balancer_relay_protocol.php, or (42) load_balancer_relay_protocol_edit.php.

The weakness was presented 08/18/2015 (Website). The advisory is shared at pfsense.org. This vulnerability is uniquely identified as CVE-2015-6510 since 08/18/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 34058 (pfSense 2.2.3 Not Installed).

Upgrading to version 2.2.3 eliminates this vulnerability.

See VDB-77273, VDB-77311, VDB-77312 and VDB-77314 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Firewall Software

Name

• pfSense

Version

• 2.2.0
• 2.2.1
• 2.2.2

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion