Cisco IOS XE up to 2.4.3/2.5.0 on ASR 1000 NAT Application Layer Gateway resource management
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.6 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, has been found in Cisco IOS XE up to 2.4.3/2.5.0 on ASR 1000 (Router Operating System). This issue affects an unknown code of the component NAT Application Layer Gateway. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:
Cisco IOS XE 2.1.0 through 2.4.3 and 2.5.0 on ASR 1000 devices, when NAT Application Layer Gateway is used, allows remote attackers to cause a denial of service (Embedded Services Processor crash) via a crafted SIP packet, aka Bug IDs CSCta74749 and CSCta77008.
The weakness was released 08/31/2015 as CSCta74749/CSCta77008 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2015-6271 since 08/17/2015. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at X-Force (105966). Entries connected to this vulnerability are available at 77502, 77500 and 77499.
Product
Type
Vendor
Name
Version
License
Support
- end of life (old version)
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 5.3VulDB Meta Temp Score: 4.6
VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Unproven
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
08/17/2015 🔍08/31/2015 🔍
08/31/2015 🔍
08/31/2015 🔍
09/01/2015 🔍
09/01/2015 🔍
06/13/2022 🔍
Sources
Vendor: cisco.comAdvisory: CSCta74749/CSCta77008
Status: Confirmed
CVE: CVE-2015-6271 (🔍)
X-Force: 105966 - Cisco ASR 1000 Aggregation Services Routers SIP denial of service
SecurityTracker: 1033410
Vulnerability Center: 52377 - Cisco IOS XE 2.1 - 2.5 on ASR 1000 Remote DoS via Crafted SIP Packets, High
scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍
Entry
Created: 09/01/2015 10:12Updated: 06/13/2022 19:47
Changes: 09/01/2015 10:12 (61), 11/20/2017 12:16 (1), 06/13/2022 19:47 (3)
Complete: 🔍
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