Unscored severity · published Apr 23, 2008
CVE-2008-1897
The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before…
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CVSS
2.7%
EPSS
No
On KEV
Description
The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server's reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Asterisk Appliance Developer Kit · Asterisk
0.2; 0.3; 0.4; 0.5; 0.6; 0.6.0; +2 more · source: NVD
AB
Asterisk Business Edition · Asterisk
through b.2.5.1; through c1.8.0; a; b.1.3.2; b.1.3.3; b.2.2.0; +12 more · source: NVD
AS
Asterisknow · Asterisk
through 1.0.2; 1.0; 1.0.1 · source: NVD
OS
Open Source · Asterisk
through 1.2.27; through 1.4.19; 1.0; 1.0; 1.0; 1.0.0; +34 more · source: NVD
S8
S800i · Asterisk
through 1.1.0.2; 1.0; 1.0.1; 1.0.2; 1.0.3; 1.0.3.3; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2008-1897
CVE.org
https://www.cve.org/CVERecord?id=CVE-2008-1897
bugs.digium.com
http://bugs.digium.com/view.php?id=10078
downloads.digium.com
http://downloads.digium.com/pub/security/AST-2008-006.html
Vendor Advisory
http://secunia.com/advisories/29927
Vendor Advisory
http://secunia.com/advisories/30010
Vendor Advisory
http://secunia.com/advisories/30042
secunia.com
http://secunia.com/advisories/34982
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