Описание
Security update for hostapd
This update for hostapd fixes the following issues:
hostapd was updated to version 2.9:
- SAE changes
- disable use of groups using Brainpool curves
- improved protection against side channel attacks [https://w1.fi/security/2019-6/]
- EAP-pwd changes
- disable use of groups using Brainpool curves
- improved protection against side channel attacks [https://w1.fi/security/2019-6/]
- fixed FT-EAP initial mobility domain association using PMKSA caching
- added configuration of airtime policy
- fixed FILS to and RSNE into (Re)Association Response frames
- fixed DPP bootstrapping URI parser of channel list
- added support for regulatory WMM limitation (for ETSI)
- added support for MACsec Key Agreement using IEEE 802.1X/PSK
- added experimental support for EAP-TEAP server (RFC 7170)
- added experimental support for EAP-TLS server with TLS v1.3
- added support for two server certificates/keys (RSA/ECC)
- added AKMSuiteSelector into 'STA ' control interface data to determine with AKM was used for an association
- added eap_sim_id parameter to allow EAP-SIM/AKA server pseudonym and fast reauthentication use to be disabled
- fixed an ECDH operation corner case with OpenSSL
Update to version 2.8
- SAE changes
- added support for SAE Password Identifier
- changed default configuration to enable only group 19 (i.e., disable groups 20, 21, 25, 26 from default configuration) and disable all unsuitable groups completely based on REVmd changes
- improved anti-clogging token mechanism and SAE authentication frame processing during heavy CPU load; this mitigates some issues with potential DoS attacks trying to flood an AP with large number of SAE messages
- added Finite Cyclic Group field in status code 77 responses
- reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
- minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494)
- fixed confirm message validation in error cases [https://w1.fi/security/2019-3/] (CVE-2019-9496)
- EAP-pwd changes
- minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495)
- verify peer scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9497 and CVE-2019-9498)
- fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/]
- enforce rand,mask generation rules more strictly
- fix a memory leak in PWE derivation
- disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
- Hotspot 2.0 changes
- added support for release number 3
- reject release 2 or newer association without PMF
- added support for RSN operating channel validation (CONFIG_OCV=y and configuration parameter ocv=1)
- added Multi-AP protocol support
- added FTM responder configuration
- fixed build with LibreSSL
- added FT/RRB workaround for short Ethernet frame padding
- fixed KEK2 derivation for FILS+FT
- added RSSI-based association rejection from OCE
- extended beacon reporting functionality
- VLAN changes
- allow local VLAN management with remote RADIUS authentication
- add WPA/WPA2 passphrase/PSK -based VLAN assignment
- OpenSSL: allow systemwide policies to be overridden
- extended PEAP to derive EMSK to enable use with ERP/FILS
- extended WPS to allow SAE configuration to be added automatically for PSK (wps_cred_add_sae=1)
- fixed FT and SA Query Action frame with AP-MLME-in-driver cases
- OWE: allow Diffie-Hellman Parameter element to be included with DPP in preparation for DPP protocol extension
- RADIUS server: started to accept ERP keyName-NAI as user identity automatically without matching EAP database entry
- fixed PTK rekeying with FILS and FT
wpa_supplicant:
- SAE changes
- added support for SAE Password Identifier
- changed default configuration to enable only groups 19, 20, 21 (i.e., disable groups 25 and 26) and disable all unsuitable groups completely based on REVmd changes
- do not regenerate PWE unnecessarily when the AP uses the anti-clogging token mechanisms
- fixed some association cases where both SAE and FT-SAE were enabled on both the station and the selected AP
- started to prefer FT-SAE over SAE AKM if both are enabled
- started to prefer FT-SAE over FT-PSK if both are enabled
- fixed FT-SAE when SAE PMKSA caching is used
- reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
- minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494)
- EAP-pwd changes
- minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495)
- verify server scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9499)
- fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/]
- enforce rand,mask generation rules more strictly
- fix a memory leak in PWE derivation
- disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
- fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
- Hotspot 2.0 changes
- do not indicate release number that is higher than the one AP supports
- added support for release number 3
- enable PMF automatically for network profiles created from credentials
- fixed OWE network profile saving
- fixed DPP network profile saving
- added support for RSN operating channel validation (CONFIG_OCV=y and network profile parameter ocv=1)
- added Multi-AP backhaul STA support
- fixed build with LibreSSL
- number of MKA/MACsec fixes and extensions
- extended domain_match and domain_suffix_match to allow list of values
- fixed dNSName matching in domain_match and domain_suffix_match when using wolfSSL
- started to prefer FT-EAP-SHA384 over WPA-EAP-SUITE-B-192 AKM if both are enabled
- extended nl80211 Connect and external authentication to support SAE, FT-SAE, FT-EAP-SHA384
- fixed KEK2 derivation for FILS+FT
- extended client_cert file to allow loading of a chain of PEM encoded certificates
- extended beacon reporting functionality
- extended D-Bus interface with number of new properties
- fixed a regression in FT-over-DS with mac80211-based drivers
- OpenSSL: allow systemwide policies to be overridden
- extended driver flags indication for separate 802.1X and PSK 4-way handshake offload capability
- added support for random P2P Device/Interface Address use
- extended PEAP to derive EMSK to enable use with ERP/FILS
- extended WPS to allow SAE configuration to be added automatically for PSK (wps_cred_add_sae=1)
- removed support for the old D-Bus interface (CONFIG_CTRL_IFACE_DBUS)
- extended domain_match and domain_suffix_match to allow list of values
- added a RSN workaround for misbehaving PMF APs that advertise IGTK/BIP KeyID using incorrect byte order
- fixed PTK rekeying with FILS and FT
- Enabled CLI editing and history support.
Update to version 2.7
- fixed WPA packet number reuse with replayed messages and key reinstallation [http://w1.fi/security/2017-1/] (CVE-2017-13082) (boo#1056061)
- added support for FILS (IEEE 802.11ai) shared key authentication
- added support for OWE (Opportunistic Wireless Encryption, RFC 8110; and transition mode defined by WFA)
- added support for DPP (Wi-Fi Device Provisioning Protocol)
- FT:
- added local generation of PMK-R0/PMK-R1 for FT-PSK (ft_psk_generate_local=1)
- replaced inter-AP protocol with a cleaner design that is more easily extensible; this breaks backward compatibility and requires all APs in the ESS to be updated at the same time to maintain FT functionality
- added support for wildcard R0KH/R1KH
- replaced r0_key_lifetime (minutes) parameter with ft_r0_key_lifetime (seconds)
- fixed wpa_psk_file use for FT-PSK
- fixed FT-SAE PMKID matching
- added expiration to PMK-R0 and PMK-R1 cache
- added IEEE VLAN support (including tagged VLANs)
- added support for SHA384 based AKM
- SAE
- fixed some PMKSA caching cases with SAE
- added support for configuring SAE password separately of the WPA2 PSK/passphrase
- added option to require MFP for SAE associations (sae_require_pmf=1)
- fixed PTK and EAPOL-Key integrity and key-wrap algorithm selection for SAE; note: this is not backwards compatible, i.e., both the AP and station side implementations will need to be update at the same time to maintain interoperability
- added support for Password Identifier
- hostapd_cli: added support for command history and completion
- added support for requesting beacon report
- large number of other fixes, cleanup, and extensions
- added option to configure EAPOL-Key retry limits (wpa_group_update_count and wpa_pairwise_update_count)
- removed all PeerKey functionality
- fixed nl80211 AP mode configuration regression with Linux 4.15 and newer
- added support for using wolfSSL cryptographic library
- fixed some 20/40 MHz coexistence cases where the BSS could drop to 20 MHz even when 40 MHz would be allowed
- Hotspot 2.0
- added support for setting Venue URL ANQP-element (venue_url)
- added support for advertising Hotspot 2.0 operator icons
- added support for Roaming Consortium Selection element
- added support for Terms and Conditions
- added support for OSEN connection in a shared RSN BSS
- added support for using OpenSSL 1.1.1
- added EAP-pwd server support for salted passwords
Список пакетов
SUSE Package Hub 15
SUSE Package Hub 15 SP1
openSUSE Leap 15.1
Ссылки
- E-Mail link for openSUSE-SU-2020:0222-1
- SUSE Security Ratings
- SUSE Bug 1056061
- SUSE CVE CVE-2017-13082 page
- SUSE CVE CVE-2019-9494 page
- SUSE CVE CVE-2019-9495 page
- SUSE CVE CVE-2019-9496 page
- SUSE CVE CVE-2019-9497 page
- SUSE CVE CVE-2019-9498 page
- SUSE CVE CVE-2019-9499 page
Описание
Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key (PTK) Temporal Key (TK) during the fast BSS transmission (FT) handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.
Затронутые продукты
Ссылки
- CVE-2017-13082
- SUSE Bug 1056061
- SUSE Bug 1063479
- SUSE Bug 1179588
Описание
The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Затронутые продукты
Ссылки
- CVE-2019-9494
- SUSE Bug 1131291
- SUSE Bug 1131868
- SUSE Bug 1194732
Описание
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Затронутые продукты
Ссылки
- CVE-2019-9495
- SUSE Bug 1131291
- SUSE Bug 1131870
- SUSE Bug 1194733
Описание
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Затронутые продукты
Ссылки
- CVE-2019-9496
- SUSE Bug 1131869
Описание
The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit. This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Затронутые продукты
Ссылки
- CVE-2019-9497
- SUSE Bug 1131871
- SUSE Bug 1131872
- SUSE Bug 1131874
Описание
The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Затронутые продукты
Ссылки
- CVE-2019-9498
- SUSE Bug 1131871
- SUSE Bug 1131872
- SUSE Bug 1131874
Описание
The implementations of EAP-PWD in wpa_supplicant EAP Peer, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may complete authentication, session key and control of the data connection with a client. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Затронутые продукты
Ссылки
- CVE-2019-9499
- SUSE Bug 1131871
- SUSE Bug 1131872
- SUSE Bug 1131874